Consulta: subjectFacets:"Irrigation management"
Registros recuperados: 163
Data/hora: 07/06/2024 04:36:01

EFFICIENCY AND UNIFORMITY OF AN SUBSURFACE DRIP IRRIGATION SYSTEM IN SUGARCANE CROP
Provedor de dados: 196
Autores: Ferreira dos Santos, José Wibison; Sampaio Reis, Lígia; Dos Santos Dias, Mirandy; Silva dos Santos, Rilbson Henrique; de Assis da Silva, Francisco; de Oliveira Santos, João Paulo.
Agricultural productivity in irrigated areas depends on several factors, including the design and maintenance of irrigation systems. Excessive or insufficient applications of water affect plant growth and development, hence agricultural productivity. For this reason, the evaluation of the irrigation system is essential to avoid water loss during application. This study aimed to evaluate the efficiency and uniformity of a subsurface drip irrigation system in sugarcane crops in an area of the company Usina Coruripe, Alagoas, Brazil. For data collection, the flow rates were obtained in four points along the lateral line, in the first dripper, in the drippers located at 1/3 and 2/3 of the lateral line length, and in the last dripper of each operational unit of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saccharum officinarum L.; Irrigation management; Localized irrigation.
Ano: 2022
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6829

Incorporating local institutions in irrigation experiments: evidence from rural communities in Pakistan
Provedor de dados: 7
Autores: Javaid, Aneeque; Leibniz Center for Tropical Marine Ecology (ZMT); Jacobs University; aneeque.javaid@zmt-bremen.de; Falk, Thomas; University of Marburg; falkt@staff.uni-marburg.de.
Many irrigation systems are special cases of common-pool resources (CPRs) in which some users have preferential access to the resource, which in theory aggravates collective action challenges such as the under-provision of necessary infrastructure as a result of unequal appropriation of water resources. We present experimental evidence based on an irrigation game played in communities that are dependent on one of the largest contiguous irrigation network: the Indus basin irrigation system in Punjab, Pakistan. Furthermore, we simulate two institutional mechanisms that are neglected in experimental studies, despite their importance in many CPR governance systems: traditional authorities and legal pluralism. In our experiments, Punjabi farmers (N = 160)...
Tipo: Peer-Reviewed Reports
Palavras-chave: Asymmetric access; Common-pool resources; Field experiments; Irrigation management; Punjab  Pakistan; Traditional authorities.
Ano: 2015

Technical and economic analysis of irrigation of asparagus bean in protected environment
Provedor de dados: 70
Autores: Silva,Wellington G.; Carvalho,Jacinto A.; Oliveira,Eduardo C.; Lima Júnior,Joaquim A.; Silva,Buno M.
This experiment was conducted in Lavras - state of Minas Gerais (MG), Brazil, in a protected environment, and aims to estimate the irrigation depths that maximize productivity and economic returns in the cultivation of asparagus bean and analyze the economic viability of irrigation management. The experimental delineation was randomized blocks with five treatments and four replications. The treatments consisted of five drip irrigation depths: 40, 70, 100, 130 and 160% of water replacement depth up to field capacity. The depths of water that maximize productivity and economic returns were obtained from the regression model adjusted to productivity data, cost of product relations and water cost. The economic viability was achieved on the benefit/cost ratio...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vigna unguiculata spp. sesquipedalis; Irrigation management; Economic viability; Benefit/cost ratio.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000400007

GÁLIA MELONS PRODUCTION IN PROTECTED ENVIRONMENT UNDER DIFFERENT IRRIGATION DEPTHS
Provedor de dados: 70
Autores: Lima,Elvis M. de C.; Carvalho,Jacinto de A.; Viol,Miguel A.; Almeida,Rodrigo C. de; Rezende,Fátima C.
ABSTRACT The study aimed to evaluate the “Gália” melons productive characteristics grown in greenhouse under different irrigation levels, and conducted with and without soil cover by plastic mulching. Experiments I (WC) and II (WtC) were conducted simultaneously in a protected environment, using a completely randomized design (CRD), where plants of Gália melons (Hybrid Nectar cv.) received five levels of water depth defined by 50, 75, 100, 125 and 150% of evapo-transpiration (water requirement), with four replications, differing only by utilization (WC) or not (WtC) of plastic mulching. The results showed that the variables productivity, average weight, length and diameter of the fruits were affected by different levels of water replacement in the soil...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Irrigation management; Protected environment; Productivity.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000100075

DEFICIT IRRIGATION OF SUBSURFACE DRIP-IRRIGATED GRAPE TOMATO
Provedor de dados: 70
Autores: Mendonça,Thaís G.; Silva,Marília B. da; Pires,Regina C. de M.; Souza,Claudinei F.
ABSTRACT Agriculture is one of the segments that most uses water and developments have been made to save irrigation water. Deficit irrigation is a technique that can contribute to production and water saving in agriculture. This study aimed to evaluate the viability of deficit irrigation in tomato production irrigated by subsurface drip in a greenhouse and estimate water saving. The experiment was conducted at the CCA/UFSCar, in Araras, São Paulo, Brazil, with grape tomato cultivation. It consisted of three treatments, 100 % water depth and deficit irrigation (75 and 50 % of water depth), with a randomized block design. Irrigation management was performed using mean soil moisture data collected through TDR probes installed in each treatment. Tomato plants...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: TDR; Water resources; Irrigation management; Water content.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400453

Evapotranspiration and crop coefficients of melon plants measured by lysimeter and estimated according to FAO 56 methodology
Provedor de dados: 70
Autores: Melo,Talyana K. de; Medeiros,José F. de; E. Sobrinho,José; Figueiredo,Vladimir B.; Souza,Paulo S. de.
Aiming at contributing to an adequate management of water resources, this study aimed to analyze and compare evapotranspiration (ETc) and crop coefficients (Kc) of melon plants measured by a lysimeter and estimated according to the FAO 56 methodology, in the city of Mossoró, state of Rio Grande do Norte (RN), Brazil. In order to measure ETc, weighing lysimeters with an area of 2.25m² were used, with two repetitions. The Penman-Monteith equation parameterized by FAO was used to estimate the reference evapotranspiration, and crop coefficients were those recommended in FAO-56 Bulletin adjusted to local climatic conditions. The required climatic data and lysimeter measurements were collected by an automatic weather station installed at the site. The results...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucumis melo L.; Irrigation management; Climatic data.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000500005

Regulated deficit irrigation and tommy atkins mango orchard productivity under microsprinkling in brazilian semi arid
Provedor de dados: 70
Autores: Cotrim,Carlos E; Coelho Filho,Maurício A; Coelho,Eugênio F; Ramos,Márcio M; Cecon,Paulo R.
This study aimed to test controlled levels of water deficiency in soil in mango trees, under microsprinkling irrigation, in semi-arid conditions, and to evaluate its effect in the productivity and fruits quality. The deficits were applied in the phases I, II and III of growth of the fruit, during the productive cycles of the mango tree in 2006 and 2007. The experiment in both cases was arranged in an entirely random design with 10 treatments and 3 repetitions, in the year I, and with 8 treatments and 3 repetitions in the year II. The values of soil water potential, of the treatments submitted to regulated deficit irrigation (RDI), were placed in the range of 0 to -0.011 MPa, showing that the soil humidity varied between the saturation and the field...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mango; Irrigation management; Water use optimization.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162011000600003

Estimated production and evapotranspiration of irrigated bean cultivars
Provedor de dados: 70
Autores: Santana,Márcio J. de; Lemos,Leandro B.; Souza,Stefany S. de; Campos,Talita M.; Silva,Flávia M. da; Borges,Rafael D.
The current study intended to determine the optimum water depth, yield and evapotranspiration (ETc) for bean cultivars. The experiment was conducted in the Campus of Unit I of the Triângulo Mineiro Federal Education and Technology Institute in Uberaba, MG, in a completely randomized design with three replications. The treatments consisted of four water-replacing levels in the soil (70, 100, 130 and 160% of the crop evapotranspiration) and four bean cultivars (Pérola, BRSMG Madrepérola, BRSMG Majestoso and IAC Alvorada). The average values of ETc obtained for soil water balance for the cultivars Pérola, BRSMG Madrepérola, BRSMG Majestoso and IAC Alvorada were, respectively, of 5.25 mm day-1, 4.59 mm day-1, 4.54 mm day-1 and 4.77 mm day-1. The water depths...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Irrigation management; ETc; Optimum water depth; Phaseolus vulgaris L.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000600006

SEMIAUTOMATIC IRRIGATION MANAGEMENT IN TOMATO
Provedor de dados: 70
Autores: Souza,Claudinei F.; Conchesqui,Maria E. S.; Silva,Marília B. da.
ABSTRACT The use of new technologies to meet the demands of the agricultural market is increasing; however, technical information on application is scarce for some areas of knowledge, including irrigation management. The objective of this study is to evaluate an automatic irrigation system with capacitance sensors connected to a local wireless network for the semiautomatic management of irrigation in tomato crops compared with a manual control system based on time-domain reflectometry (TDR)-type sensors. The experiments were carried out in a protected environment, and the seedlings were transplanted following surface drip lines. The study adopted a completely randomized block design consisting of two treatments and 12 repetitions, totaling 24 subplots. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digital assistant; Irrigation management; TDR; Capacitance; Solanum lycopersicum L.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000800118

Effects of water deficit in two phenological stages on production of japanese cucumber cultived in greenhouse
Provedor de dados: 70
Autores: Oliveira,Eduardo C.; Carvalho,Jacinto de A.; Silva,Wellington G. da; Rezende,Fátima C.; Almeida,Willian F. de.
The experiment was performed in the experimental area of the Engineering Department Federal University of Lavras, Minas Gerais State, Brazil. It aimed at identifying the adequate irrigation management of the greenhouse-cultivated Japanese cucumber (Cucumis sativus L.). complete randomized design, with four levels of soil water potential (15; 30; 60 e 120 kPa) at two phenological phases (vegetative and reproductive), and 5 replications. Overall, the results showed decrease of yield according to increase of soil water potentials. During the reproductive stage, Japanese cucumber plants were more sensitive to water deficit, resulting in further decrease in yield compared to applied water deficit during the vegetative stage of the culture.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucumis sativus L.; Greenhouse; Irrigation management.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162011000400006

Greenhouse crisphead lettuce grown with mulching and under different soil water tensions
Provedor de dados: 70
Autores: Geisenhoff,Luciano O; Pereira,Geraldo M; Lima Junior,Joaquim A. de; Silva,Andre L. Pereira da; Aviz,William L. Carrera de.
ABSTRACT Proper irrigation management is important both to enable adequate water supply and to minimize problems with diseases, nutrient leaching and unnecessary water and power wastes. Thus, this study aimed at improving irrigation management in greenhouses. For that reason, we assessed the effect of various water tensions on yield performance of crisphead lettuce, Raider-Plus cv. , grown with mulching. The experiment was conducted in greenhouse at the Federal University of Lavras. Treatments constituted five different soil water tensions, namely 12, 25, 35, 45, and 70 kPa. The results showed that irrigation must be carried out at water soil tension of around 12 kPa to reach satisfying commercial values for both total and commercial yield, 66 and 50 t...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactuta sativa; Irrigation management; Protected environment; Soil covering.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000100046

AGRONOMIC PERFORMANCE OF RADISH GENOTYPES UNDER DIFFERENT IRRIGATION DEPTHS
Provedor de dados: 70
Autores: Cunha,Fernando F. da; Souza,Ivan P. de; Campos,Washington de O.; Andrade Júnior,Valter C. de; Magalhães,Thiago A.
ABSTRACT In radish production, the choice of proper genotypes and irrigation regime is of great importance to achieve success. In light of this, the current study aimed to evaluate the agronomic performance of a few radish genotypes under different irrigation strategies. The plants were grown in the city of Unaí - MG, in Brazil, under field conditions, and during two cycles, one of 40 days (from February 28 to April 8, 2015) and other of 51 days (from May 9 to June 28, 2015). The experimental design was a randomized block design in a split-plot arrangement with four replications. The treatments consisted of four irrigation strategies (50, 75, 100, and 125% of crop evapotranspiration - ETc) applied by a dripping irrigation system, while subplots consisted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Horticulture; Irrigation management; Raphanus sativus.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000200182

Soil water stress ranges: water use efficiency and Chinese cabbage production in protected cultivation
Provedor de dados: 75
Autores: Paulus,Dalva; Zorzzi,Ivan Carlos; Rankrape,Fabiana.
ABSTRACT Water deficit or water excess can affect development and yield of vegetables. The objective of this study was to evaluate the effect of different soil water stress ranges for Chinese cabbage (Brassica pekinensis) in a protected cultivation. The researches were carried out at the Olericulture Sector of Universidade Federal Tecnologica do Paraná between April and July, 2015 and January and April, 2016. Two Chinese cabbage cultivars were analyzed (Eikoo and Kinjitsu) with four soil water stress range (13-17, 23-27, 33-37 and 43-47 kPa) moments of irrigation indicative parameters. The trial design was completely randomized, with four replications, in a factorial scheme. For head fresh mass, a soil stress range of 13-17 kPa resulted in higher yield...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brassica pekinensis; Tensiometry; Irrigation management; Water deficit.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000300309

Saline irrigation water indices affect morphophysiological characteristics of collard
Provedor de dados: 75
Autores: Viana,Jonathan dos S; Palaretti,Luiz Fabiano; Sousa,Vinicius M de; Barbosa,José de A; Bertino,Antonio Michael P; Faria,Rogério T de; Dalri,Alexandre B.
ABSTRACT Collard is a vegetable widely consumed in Brazil. However, the quality and production of this vegetable depend on the supply and quality of water. Water stress and saline stress can make it impossible to grow. The objective of this study was to evaluate the performance of morphophysiological characteristics of collard cv. Georgia under irrigation levels and saline indices after the first defoliation.The experiment was conducted in a greenhouse, under random blocks design, and the treatments consisted of combinations of five water electrical conductivities (CEi in dS m-1: C1 =0.80; C2 =1.30; C3 = 1.80; C4 = 2.30; C5 = 2.80) and four irrigation levels based on the vase capacity (PwC: L1 = 55%; L2 = 70%; L3 = 85%; L4 = 100%), with four replications....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brassica oleracea var. acephala; Leafy vegetable; Brackish water; Irrigation management.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362021000100079

Influence of lettuce as cover crop of the soil on sprinkler irrigation uniformity and parameters of efficiency
Provedor de dados: 75
Autores: Marques,Patricia Angélica A; Fonseca,Mário Alberto L; Baldotto,Pedro V.
The effect of lettuce as cover crop was evaluated on sprinkler irrigation uniformity and parameters of efficiency. The experiment was carried out in field at the Universidade do Oeste Paulista, in Presidente Prudente, São Paulo, Brazil, from August to October, 2006. One treatment was performed on bare soil and the other using lettuce cultivar Vera as cover crop, at the end of the cycle. The average water depth, application rate, uniformity of distribution coefficient, Christiansen uniformity coefficient, Hawaiian uniformity coefficient, as well as the statistical uniformity coefficient were evaluated. The following plant spacing were simulated: 12 x 12, 12 x 18, and 18 x 18 m. The highest water depth retained with lettuce crop cover, at the end of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactuca sativa L; Irrigation assessment; Irrigation management.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362009000300022

Irrigação de pequenas áreas.
Provedor de dados: 14
Autores: PINTO, J. M.
A limitação de recursos hídricos dificulta a produção de alimentos em regiões semiáridas, com distribuição irregular de precipitações pluviométricas. Dessa forma, a otimização desses recursos, captando água de chuva para uso doméstico, para a criação de animais e para a produção de alimentos se torna uma necessidade premente. Outra alternativa é utilizar a água armazenada em pequenas bacias de captação (lagoas, barreiros, pequenos açudes) que se formam durante o período chuvoso para cultivos de hortas e pomares. No caso de hortaliças, com espaçamentos pequenos entre plantas, deve-se molhar uma faixa contínua do solo, enquanto em fruteiras, com plantas de maior porte, recomenda-se molhar manchas de solo, aplicando-se uma quantidade menor de água por área,...
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Convivência com o semiárido; Pequena irrigação; Irrigação Localizada; Irrigação Subterrânea; Irrigação Suplementar; Equipamento de Irrigação; Água de Irrigação; Irrigation; Irrigation management; Irrigation systems; Irrigation water; Runoff irrigation.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1098844

Solos e irrigação.
Provedor de dados: 14
Autores: RAMOS, C. M. C.; BASSOI, L. H.; MEDEIROS, P. R. F. de; FERREIRA, M. da S.
Dados regionalizados como ferramenta de caracterização de área e gestão da irrigação: O planejamento e gerenciamento dos recursos hídricos em um perímetro irrigado exige a utilização de técnicas e instrumentos capazes de auxiliar profissionais a realizarem a gestão de água em um cenário complexo quanto às demandas e ofertas desse recurso. Para isso, o conhecimento da variabilidade espacial dos atributos do solo relacionadas ao fluxo e armazenamento de água no mesmo, pode contribuir na definição de melhores estratégias para o manejo sustentável do solo e da água. O planejamento agrícola em uma área irrigada busca considerar diferentes informações que variam no espaço e no tempo, como o uso do solo, disponibilidade e demanda de água, a prática da irrigação e...
Tipo: Parte de livro
Palavras-chave: Ferramenta computacional; Gerenciamento do recurso hídrico; Atributos do solo; Armazenamento da água; Mapa de dado; Projeto de irrigação; Perímetro Irrigado do Pontal Sul; Vale do São Francisco; Petrolina; Irrigação; Gestão; Projeto Agrícola; Recurso Hídrico; Planejamento; Manejo do Solo; Soil; Irrigation; Irrigation canals; Irrigation management; Irrigation systems; Irrigation water.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1140429

Manejo de irrigação de baixo custo para a agricultura familiar.
Provedor de dados: 14
Autores: COELHO, E. F.; SILVA, T. S. M. da; SILVA, A. J. P. da; PARIZOTTO, I.; SANTANA JUNIOR, E. B.
A maior parte da produção na agricultura familiar da região semiárida do Nordeste brasileiro fica restrita aos períodos chuvosos bastante curtos e cada vez mais incertos. Outra parte menor é obtida em áreas irrigadas, mas, de um modo geral, a aplicação de água é feita de uma forma incorreta, seja pecando por excesso quando a água disponível é abundante ou por deficiência quando há maior rigor na disponibilização da água. Em ambas as situações há perdas envolvidas que afetam o sucesso da produção agrícola a curto, médio e longo prazo. Diante disso, e considerando as crescentes incertezas climáticas anuais e os riscos cada vez maiores da ocorrência de longos períodos de deficiência hídrica com a continuidade da tendência do aquecimento global, tornam-se...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Manejo de irrigação; Irrigação; Agricultura familiar; Irrigation; Irrigation management.
Ano: 2013
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/971173

Viabilidade da irrigação suplementar do feijoeiro na época das águas.
Provedor de dados: 14
Autores: JUSTINO, L. F.; ALVES JÚNIOR, J.; BATTISTI, R.; STONE, L. F.; HEINEMANN, A. B.
O estudo visou quantificar o retorno econômico proporcionado pela irrigação suplementar do feijoeiro na época das águas. A produtividade do feijoeiro foi simulada para 30 anos no modelo de cultura Cropgro-Dry Bean para a cultivar Pérola, considerando as datas de semeadura de 1º de novembro a 1º de janeiro e quatro manejos hídricos: sem irrigação; irrigação com 70%, 50% e 30% do total de água disponível no solo (TAD). As irrigações a 70%, 50% e 30% do TAD aumentaram a produtividade em 26,7% a 41,4%; 5,5% a 14,5%; e 0,4% a 2,4% , respectivamente . A demanda média foi de 53 mm ciclo-1 no manejo de 70% do TAD e de 19 mm ciclo-1 no de 50% e de 30%, sem necessidade de irrigação na maioria das estações de cultivo. O atraso na semeadura em relação a 1º de novembro...
Tipo: Folhetos
Palavras-chave: Feijão; Phaseolus Vulgaris; Risco Climático; Modelo de Simulação; Análise Econômica; Manejo; Irrigação; Método de Irrigação; Rendimento; Irrigation management; Climate models; Economic analysis; Crop models; Yields; Beans.
Ano: 2022
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1140955

Produção de cebola com irrigação localizada e fertirrigação: resultados do Projeto Lago de Sobradinho.
Provedor de dados: 14
Autores: PINTO, J. M.; YURI, J. E.; COSTA, N. D.; CORREIA, R. C.; CALGARO, M.
A necessidade de produzir alimentos saudáveis no entorno do Lago de Sobradinho, preservando-se os recursos naturais, solo e água, levou a Companhia Hidroelétrica do São Francisco (Chesf) afirmar uma parceria com a Embrapa para a execução de um projeto contemplando, tanto a agricultura irrigada quanto a agricultura de sequeiro, com a fi nalidade de orientar os produtores dos municípios da margem do Lago de Sobradinho a adotar tecnologias específi cas a cada tipo de atividade agropecuária. Um dos objetivos desse projeto foi implantar e recomendar um sistema de produção de cebola (Allium cepa L.) sustentável, com o uso da irrigação localizada por gotejamento. Na região do Lago de Sobradinho, tradicionalmente, o cultivo de cebola é realizado em sulcos de infi...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Irrigação por superfície; Lago do Sobradinho; Projeto Chesf; Hortaliça de Bulbo; Cebola; Adubação; Fertirrigação; Irrigação; Irrigação por Gotejamento; Onions; Irrigation management; Fertilizer application.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1103578

Agricultura irrigada: potencialidade do semiárido.
Provedor de dados: 14
Autores: LIMA, J. R. F. de; SOUZA, F. de F.
A Vitivinicultura no Semiárido; A Mangicultura no Semiárido; Outras frutíferas no Semiárido; Novos cultivos de frutíferas no Semiárido; A Olericultura no Semiárido; Perspectivas para o futuro da Agricultura irrigada no Semiárido.
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Agricultura de baixo carbono; Semiárido; Agricultura irrigada; Fruticultura irrigada; Vinho tropical; Suco de uva; Certificação do Vale São Francisco; Agricultura; Irrigação; Fruticultura; Viticultura; Manga; Citricultura; Olericultura; Mudança Climática; Economia da Produção; Desenvolvimento Socio-Econômico; Agriculture; Precision agriculture; Tropical agriculture; Sustainable agriculture; Fruit products; Fruit wines; Fruiting; Tropical and subtropical fruits; Irrigation; Irrigation management; Social impact; Social environment; Agricultural economics.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1098479

Pore network of an Inceptisol under different uses and relativized S-index as an indicator of soil physical quality
Provedor de dados: 86
Autores: Assis Júnior,Raimundo Nonato de; Mota,Jaedson Cláudio Anunciato; Freire,Alcione Guimarães; Alencar,Thiago Leite de.
Abstract The objective of this work was to evaluate soil porous media quality under different uses, as well as to propose a new index to monitor changes in its structure due to management: the Srelative index. An Inceptisol under irrigated banana cultivation and secondary forest, in the Brazilian Apodi Plateau, was evaluated at three soil layers (0.0-0.1, 0.1-0.2, and 0.2-0.3 m) as to: particle size, particle and bulk density, organic matter content, intrinsic permeability to air, and water retention curve. Total porosity, index for pore continuity (defined by the ratio between soil intrinsic permeability to air and aeration porosity), volume of blocked pores, and the S and Srelative indices were determined. The Srelative index was calculated as the ratio...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blocked porosity; Irrigation management; Pore continuity; Soil management; Soil permeability to air; Srelative index.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000901575

Agro-industry production of sugarcane grown using subsurface drip fertigation with nitrogen and potassium
Provedor de dados: 86
Autores: Nascimento,Fábio Nunes do; Andrade Júnior,Aderson Soares de; Bastos,Edson Alves; Ribeiro,Valdenir Queiroz; Lopes,Alzeneide da Silva.
Abstract: The objective of this work was to evaluate the stalk yield, technological quality parameters, and sugar and alcohol productions in the first sugarcane (Saccharum officinarum) crop cycle, according to the response to N and K2O applications by subsurface drip fertigation. The experiment was carried out in a dystrophic Ultisol, in a randomized complete block design with four replicates. The treatments consisted of a 2X + 2X + 1 incomplete factorial arrangement with the application of 60, 80, 120, 160, and 180 kg ha-1 N and 60, 80, 120, 160, and 180 kg ha-1 K2O. The maximum estimated yield (217.5 Mg ha-1) was obtained with the application of 180 kg ha-1 N and 60 kg ha-1 K2O. Sugar and alcohol productions increased with N application above 120 kg...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saccharum officinarum; Alcohol production; Fertilizer; Irrigation management; Sugarcane juice.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001201346

Alternative reference evapotranspiration methods for the main climate types of the state of Paraná, Brazil
Provedor de dados: 86
Autores: Gurski,Bruno César; Jerszurki,Daniela; Souza,Jorge Luiz Moretti de.
Abstract: The objective of this work was to define the best alternative methods for estimating the reference evapotranspiration (ETo) in the main climatic types (Cfa and Cfb) of the state of Paraná, Brazil. The methods tested were Budyko, Camargo, Hargreaves-Samani, Linacre, and Thornthwaite, which were compared to the ETo calculated with the Penman-Monteith ASCE (EToPM) method, between 1986 and 2015, in eight meteorological stations. The performance of the alternative methods was obtained from the coefficient of determination (R2), index “d” of agreement, index “c” of performance, and root mean square error (RMSE). The Hargreaves-Samani method has a better performance in estimating the ETo for the main climatic types in the state of Paraná. The Camargo...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Climate variability; Irrigation management; Missing climate data; Penman Monteith; Simplified models; Water balance.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000901003

Weed Management in Direct Seeded Rice Grown under Varying Tillage Systems and Alternate Water Regimes
Provedor de dados: 87
Autores: RIAZ,A.; KHALIQ,A.; FIAZ,S.; NOOR,M.A.; NAWAZ,M.M.; MAHBOOB,W.; ULLAH,S.
ABSTRACT: In direct seeded rice (DSR), flushes of weeds are encountered, and mostly subsequent herbicides need to apply to control weeds that appear later. A farmer friendly approach was hypothesized in present study to integrate the management strategies for water, soil and cost effective weed free rice production. Efficacy of various herbicides in weed control to improve the performance of aerobic rice grown under varying tillage and alternate water regimes was evaluated. Five weed management techniques (weedy check, weed-free, pendimethalin followed by manual weeding, pendimethalin + bispyribac sodium (BS) + bensulfuron (B) and pendimethalin + MCPA) were carried out within the alternate wetting and drying (AWD) regimes (15 and 20 cm depth) under two...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerobic rice; Herbicides; Irrigation management; Benefit-cost ratio.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100259

Management of private tubewells in a conjunctive use environment: a case study in the Mananwala Distributary Command Area, Punjab, Pakistan
Provedor de dados: 31
Autores: Malik,   Saleem M.; Strosser,   Pierre.
This paper analyzes the tubewell data collected by IIMI-Pakistan over a period of 4 years. While the main emphasis remains on the operation of private tubewells, public tubewells and canal water supplies are included in the analyses to give a more comprehensive picture of the conjunctive use environment, a characteristic of most of the irrigated areas of the Punjab, Pakistan.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Irrigated farming; Tube well irrigation; Groundwater; Surface water; Watercourses; Conjunctive use; Water market; Salinity; Farming systems; Farm Management.
Ano: 1993
URL: http://purl.umn.edu/113013

World water demand and supply, 1990 to 2025: scenarios and issues
Provedor de dados: 31
Autores: Seckler,   David; Amarasinghe,   Upali A.; Molden,   David J.; de Silva,   Radhika; Barker,   Randolph.
Presents two alternative scenarios of water demand and supply for 118 countries over the 1990 to 2025 period and develops indicators of water scarcity for each country and for the world as a whole. This study is the first step in IWMI's long-term research goal: to determine the extent and depth of water scarcity, its consequences for individual countries and what can be done about it.
Tipo: Report
Palavras-chave: Irrigation management; Water balance; River basins; Basin irrigation; Water use efficiency; Water supply; Water requirements; Domestic water; Water scarcity; Water demand; Water shortage; Irrigated farming; Productivity; Food security; Recycling; Rice; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty.
Ano: 1998
URL: http://purl.umn.edu/61108

Institutional factors affecting irrigation performance in Pakistan: research and policy priorities
Provedor de dados: 31
Autores: Bandaragoda,   Don Jayatissa; Firdousi,   G.R.
The strong irrigation tradition has sustained the broad based community interest in irrigation. The result is a very complex institutional milieu in which a set of formally established irrigation rules and organizations exists side by side with an intricate set of social institutions. The two sets act like a dual system often in conflict with each other. The authors, while analyzing the present institutional barriers, have highlighted the importance of irrigation rules and procedures in the institutional framework.
Tipo: Book
Palavras-chave: Irrigation management; Performance evaluation; Institutions; Poverty; Legislation; Food Security and Poverty; Institutional and Behavioral Economics.
Ano: 1992
URL: http://purl.umn.edu/113726

"Institutional adaptation" for integrated water resources management: An effective strategy for managing Asian river basins
Provedor de dados: 31
Autores: Bandaragoda,   Don Jayatissa.
In many developing countries, their governments dominate the field of water resources management. Even in “participatory irrigation management” efforts, the governments play a dominant role. As these efforts are rarely based on any internally generated demand from the water users, they usually fail to create viable organizations at the local level. A similar setback can be seen in the more recent institutional reforms in Asia’s water sector, which are promoted by the donor agencies and, national and international development professionals. A survey of experiences in Asian countries shows that no country has successfully completed establishing new water sector policies and laws and river basin organizations, as prescribed. The need to improve current...
Tipo: Working or Discussion Paper
Palavras-chave: River basin development; Irrigation management; Institutional development; Organizations; Water allocation; Developing countries; International Development; Production Economics; Resource /Energy Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/91906

Gender in lift irrigation schemes in East Gujarat, India
Provedor de dados: 31
Autores: Saini,   Harmeet; van Koppen,   Barbara.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Participatory management; Women in development; Woman's status; Gender; Irrigated farming; Irrigation programs; Water lifting; Communal irrigation systems; Cooperatives; Legal aspects; Decision making; Villages; Community/Rural/Urban Development; Farm Management; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/92767

Integrated management of water, forest and land resources in Nepal: Opportunities for improved livelihood
Provedor de dados: 31
Autores: Pant,   Dhruba; Thapa,   Sabita; Singh,   Ashok; Bhattarai,   Madhusudan; Molden,   David J.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Forest management; Public policy; Land use; Land tenure; Farm size; Environmental effects; Gender; Women; Equity; Institutions; Conflict; Environmental Economics and Policy; Farm Management; Institutional and Behavioral Economics; Land Economics/Use; Public Economics.
Ano: 2005
URL: http://purl.umn.edu/92405

Improving agricultural productivity for poverty alleviation through integrated service provision with public-private sector partnerships: examples and issues.
Provedor de dados: 31
Autores: Hussain,   Intizar; Perera,   L.R.
Enduring low agricultural productivity is one of the major causes of rural poverty in South Asia. Based on a review of recent empirical studies, this paper focuses on three key questions: (1) why is agricultural productivity low in the region?; (2) what are the key constraints and opportunities for enhancing agricultural productivity; and (3) what are the effective mechanisms to improve access to key productivity enhancing technologies, factors and services. Two major points raised in the paper are: (a) improved management of land and water is important for increasing productivity, but equally important is farmers' access to non land and water-related inputs and services, which through their complementary relationships with water, increase the productivity...
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Crop production; Productivity; Constraints; Poverty; Farmers’ associations; Public sector; Private sector; Models; Food security; Sugarcane; Rice; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Production Economics.
Ano: 2004
URL: http://purl.umn.edu/92408

Proceedings from the workshop on selected irrigation management issues, Digana Village, Sri Lanka, 15-19 July 1985.
Provedor de dados: 31
Autores: International Irrigation Management Institute (IIMI).
Tipo: Report
Palavras-chave: Irrigation management; Evaluation; Rehabilitation; Water distribution; Farmers' associations; Social aspects; Institutional constraints; Canals; Agribusiness; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Land Economics/Use.
Ano: 1986
URL: http://purl.umn.edu/52779

Institutional analysis of integrated water resources management in river basins: A methodology paper.
Provedor de dados: 31
Autores: Kurian,   Mathew.
Tipo: Working or Discussion Paper
Palavras-chave: Water resource management; River basins; Irrigation management; Water use; Institution building; Institutional and Behavioral Economics; Resource /Energy Economics and Policy.
Ano: 2004
URL: http://purl.umn.edu/92519

Macro policies and investment priorities for irrigated agriculture in Vietnam
Provedor de dados: 31
Autores: Barker,   Randolph; Ringler,   Claudia; Tien,   Nguyen Minh; Rosegrant,   Mark W.
Tipo: Report
Palavras-chave: Irrigated farming; Investment policy; Irrigation management; Marketing; Trade policy; Public finance; Water law; Regression analysis; Agricultural credit; Households; Agricultural and Food Policy; Agricultural Finance; Marketing; Resource /Energy Economics and Policy.
Ano: 2004
URL: http://purl.umn.edu/92833

Assessing the outcomes of IWMI’s research and interventions on irrigation management transfer
Provedor de dados: 31
Autores: Giordano,   Meredith A.; Samad,   Madar; Namara,   Regassa E.
The purpose of this paper is to summarize IIMI/IWMI's past research and interventions related to irrigation management transfer and to document, to the extent possible, the academic, policy, and technical outcomes of these efforts. The application of a range of direct and indirect measurement techniques suggests an overall positive contribution from IWMI to IMT theory and application.
Tipo: Report
Palavras-chave: Irrigation management; Participatory management; Privatization; Water users associations; Farmers associations; Gender; Agribusiness; Agricultural Finance; Community/Rural/Urban Development; Farm Management; Financial Economics.
Ano: 2006
URL: http://purl.umn.edu/44524

Land settlement planning for improved irrigation management: a case study of the Kirindi Oya Irrigation and Settlement Project
Provedor de dados: 31
Autores: Stanbury,   Pamela.
This paper analyzes the impact of settlement policies on irrigation management in a new irrigated settlement scheme in southern Sri Lanka based on field research in 1988.  It provides policy recommendations for improvements on this scheme and in future schemes.
Tipo: Book
Palavras-chave: Land use; Settlement patterns; Irrigation management; Irrigated farming; Farmer-agency interactions; Farmers associations; Economic aspects; Irrigation programs; Irrigable land; Farmer participation; Farm Management; Institutional and Behavioral Economics; Land Economics/Use.
Ano: 1989
URL: http://purl.umn.edu/114042

Gender and irrigation in India: the Women's Irrigation Group of Jambar, South Gujarat
Provedor de dados: 31
Autores: van Koppen,   Barbara; Nagar,   Rashmi K.; Vasavada,   Shilpa.
Documents a "best practice" - a successful gender-balanced irrigation intervention in which women were given control over an irrigation technology. The study evaluates the approach taken by the implementing NGO, the Aga Khan Rural Support Programme, in terms of its replicability in other areas where women share in farm activities and decision making.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Women in development; Gender; Female labor; Agricultural credit; Decision making; Irrigation programs; Rain-fed farming; Institution building; Pumping; India; South Gujarat; Bharuck; Jambar; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Institutional and Behavioral Economics; Labor and Human Capital; Land Economics/Use; Productivity Analysis.
Ano: 2001
URL: http://purl.umn.edu/53073

Gender analysis and reform of irrigation management: concepts, cases, and gaps in knowledge; Proceedings of the Workshop of Gender and Water, 15-19 September 1997, Habarana, Sri Lanka
Provedor de dados: 31
Tipo: Presentation
Palavras-chave: Gender; Privatization; Irrigation management; Women in development; Property rights; Water scarcity; Developing countries; Agricultural production; Water resources; Water rights; Poverty; Policy; Economic aspects; Land tenure; Legislation; Rice; Water users' associations; Irrigated farming; Planning; Agricultural and Food Policy; Agricultural Finance; Farm Management; Food Security and Poverty; Institutional and Behavioral Economics; International Development; Labor and Human Capital; Land Economics/Use; Public Economics; Resource /Energy Economics and Policy.
Ano: 1998
URL: http://purl.umn.edu/118416

Water users association in XIth Branch Canal Periyar Vaigai Project: farmers experience
Provedor de dados: 31
Autores: Kannan,   N.
Tipo: Book
Palavras-chave: Water users associations; Farmer participation; Irrigation management; Privatization; Irrigation canals; Water distribution; Tank irrigation; Wells; Farm Management; Institutional and Behavioral Economics.
Ano: 1995
URL: http://purl.umn.edu/113613

Impact assessment of rehabilitation intervention in the Gal Oya Left Bank
Provedor de dados: 31
Autores: Amarasinghe,   Upali A.; Sakthivadivel,   Ramasamy; Murray-Rust,   Hammond.
Assesses the impact of rehabilitation interventions on irrigation system performance using time series analysis. The study demonstrates that with proper impact specification and model identification, the nature and magnitude of the impacts of different interventions can be separated from the effects of simultaneous changes in dominant exogenous factors.
Tipo: Report
Palavras-chave: Irrigation management; Water management; Irrigation systems; Productivity; Rehabilitation; Models; Project evaluation; Rain; Reservoir storage; Sri Lanka; Gal Oya Project; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 1998
URL: http://purl.umn.edu/52965

Improving water productivity: how do we get more crop from every drop?
Provedor de dados: 31
Autores: International Water Management Institute (IWMI); Comprehensive Assessment of Water Management in Agriculture.
Based on research presented in the book “Water Productivity in Agriculture : Limits and Opportunities for Improvement” by J.W. Kijne, R. Barker and D. Molden. If current trends continue, the water crisis—which is already beginning to rear its head in many countries through depleted groundwater aquifers, dried-up rivers and wetlands, and frequent water shortages—will indeed become a global problem. A recent study by the International Food Policy Research Institute (IFPRI) and the International Water Management Institute (IWMI) projects that if present trends continue, by 2025 competition from growing cities and industry worldwide will limit the amount of water available for irrigation, causing annual global losses of 350 million metric tons of food...
Tipo: Report
Palavras-chave: Water management; Productivity; Irrigation management; Supplemental irrigation; Crop production; Crop Production/Industries; Productivity Analysis.
Ano: 2003
URL: http://purl.umn.edu/113016

Inadequacies in the water reforms in the Kyrgyz Republic: an institutional analysis
Provedor de dados: 31
Autores: Ul Hassan,   Mehmood; Starkloff,   Ralf; Nizamedinkhodjayeva,   Nargiza.
This report analyzes the evolving water-management institutions and their performance of five core water management functions, in the context of the ongoing economic and agrarian reform in the Kyrgyz Republic. These core water-management functions are, operation of water systems, maintenance, resource mobilization, conflict resolution and organizational management. The report also identifies key issues and challenges that constrain effective stakeholder participation in water-resources management.
Tipo: Report
Palavras-chave: Water resource management; Analysis; Irrigation management; Participatory management; Water users’ associations; Research methods; Agrarian reform; Irrigation programs; Operations; Maintenance; Conflict; Rivers; Kyrgyzstan; Agribusiness; Community/Rural/Urban Development; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Institutional and Behavioral Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods.
Ano: 2004
URL: http://purl.umn.edu/53066

Free-riders or victims:  Women's nonparticipation in irrigation management in Nepal's Chhattis Mauja Irrigation Scheme.
Provedor de dados: 31
Autores: Zwarteveen,   Margreet Z.; Neupane,   Nita.
Examines multiple factors in women's involvement/non-involvement in irrigation in the Chhattis Mauja irrigation scheme in Nepal. Includes an empirical analysis of the livelihood strategies of farm households, documentation of the level and nature of participation of women and men in the water users' organizations, analysis of women's access to irrigation services, and an examination of the need and desirability of increasing the participation of woman in the scheme organization.
Tipo: Report
Palavras-chave: Irrigation management; Farmer-managed irrigation systems; Irrigation programs; Privatization; Water users' associations; Irrigated farming; Irrigation canals; Water delivery; Water allocation; Water distribution; Maintenance; Gender; Women in development; Farmers; Female labor; Agricultural manpower; Households; Family labor; Living standards; Social aspects; Agricultural production; Villages; Social organization; Performance evaluation; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Farm Management; Food Security and Poverty; Institutional and Behavioral Economics; Land Economics/Use; Production Economics.
Ano: 1996
URL: http://purl.umn.edu/52731

Pedaling out of poverty:  Social impact of a manual irrigation technology in South Asia
Provedor de dados: 31
Autores: Shah,   Tushaar; Alam,   Mahmudul; Kumar,   M. Dinesh; Nagar,   Rashmi K.; Singh,   Mahendra.
An assessment of the social impact of treadle pump technology for manual irrigation in eastern India, the Nepal Terai, and Bangladesh, South Asia's so-called "poverty square." Treadle pump technology can be a powerful tool for poverty reduction in this region. It "self-selects" the poor, and puts to productive use the region's vast surplus family labor. It is claimed that the treadle pump could raise the annual net household income by US$100, on the average.
Tipo: Report
Palavras-chave: Irrigation management; Treadle pump; Treadle pump technology; Technology transfer; Manual pumps; Water lifting; Low lift pumps; Aquifers; Poverty; Irrigated farming; Social impact; Income; Marketing; Pricing; Agribusiness; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Marketing; Production Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 2000
URL: http://purl.umn.edu/44571

Status of institutional reforms for integrated water resources management in Asia: Indications from policy reviews in five countries
Provedor de dados: 31
Autores: Bandaragoda,   Don Jayatissa.
Tipo: Working or Discussion Paper
Palavras-chave: River basin development; Institutional development; Water policy; Water users’ associations; Irrigation management; Water law; National planning; Water demand; Water resource management; Community/Rural/Urban Development; Institutional and Behavioral Economics; Resource /Energy Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/91908

Water users' association in Panchanthangipatti Tank: a farmers' experience
Provedor de dados: 31
Autores: Neelavalli,   B.
Tipo: Book
Palavras-chave: Water users associations; Farmers associations; Farmer participation; Farmers attitudes; Irrigation management; Privatization; Tank irrigation; Farm Management; Institutional and Behavioral Economics.
Ano: 1995
URL: http://purl.umn.edu/113695

Pro-poor intervention strategies in irrigated agriculture: lessons from the Asian experience
Provedor de dados: 31
Autores: International Water Management Institute (IWMI).
Irrigated agriculture has contributed greatly to food security in Asia - and irrigation projects present new opportunities for reducing poverty. This requires that projects deliberately tilt towards the poor. Moreover, policymakers, implementers and managers need to adopt an integrated approach when using irrigation as a pro-poor intervention strategy. With the right institutional and technical conditions, an effective incentives structure and proper implementation and management practices, pro-poor irrigation projects can make a significant difference to poverty in the region.
Tipo: Report
Palavras-chave: Irrigation management; Poverty; Women; Water rights; Water allocation; User charges; Agricultural and Food Policy; Food Security and Poverty.
Ano: 2007
URL: http://purl.umn.edu/113057

Participatory management in Sri Lanka's irrigation schemes
Provedor de dados: 31
Autores: International Irrigation Management Institute (IIMI).
Several forms of participatory management are either experimented with, in use, or have been in use in Sri Lanka by various agencies (government, semi-government, and voluntary).  An overview of village irrigation systems in Sri Lanka, with reference to ongoing irrigation development efforts and particular irrigation management needs is presented, as well as priority research issues relevant to small-scale irrigation systems.
Tipo: Book
Palavras-chave: Irrigation management; Farmer participation; Small scale systems; Farm Management.
Ano: 1986
URL: http://purl.umn.edu/113952

Irrigation management in Latin America: present situation, problem areas and areas of potential improvement
Provedor de dados: 31
Autores: International Irrigation Management Institute (IIMI).
Tipo: Book
Palavras-chave: Irrigation management; Water potential; Irrigation systems; Social aspects; Economic aspects; Water users associations; Farm Management; Institutional and Behavioral Economics.
Ano: 1990
URL: http://purl.umn.edu/113951

Assessment of participatory management of irrigation schemes in Sri Lanka: Partial reforms, partial benefits
Provedor de dados: 31
Autores: Samad,   Madar; Vermillion,   Douglas Lynn.
Describes the application of a standard methodology developed by IWMI to assess the impact of irrigation management transfer on the performance of irrigation schemes. Includes detailed analysis of the effects of participatory management on the performance of irrigation schemes in Sri Lanka.
Tipo: Report
Palavras-chave: Privatization; Policy; Performance evaluation; Indicators; Operating costs; Irrigation management; Economic aspects; Returns; Participatory management; Farmer participation; Government managed irrigation systems; Small scale systems; Large-scale systems; Regression analysis; Models; Agribusiness; Agricultural Finance; Community/Rural/Urban Development; Farm Management; Research and Development/Tech Change/Emerging Technologies.
Ano: 1999
URL: http://purl.umn.edu/44577

Assessing irrigation performance with comparative indicators:  The case of the Alto Rio Lerma Irrigation District, Mexico
Provedor de dados: 31
Autores: Kloezen,   Wim H.; Garces-Restrepo,   Carlos.
Describes and evaluates the application of IWMI's minimum set of performance indicators to the Alto Rio Lerma Irrigation District, and compares this with the application of a small set of process performance indicators.
Tipo: Report
Palavras-chave: Irrigation management; Irrigation scheduling; Water allocation; Water distribution; Case studies; Institutional constraints; Operation; Monitoring; Indicators; Performance indexes; Water rights; Economic aspects; Data collection; Environmental effects; Performance evaluation; Water use efficiency; Crop Production/Industries; Institutional and Behavioral Economics; Production Economics.
Ano: 1998
URL: http://purl.umn.edu/44580

Irrigation impacts on income inequality and poverty alleviation: policy issues and options for improved management of irrigation systems.
Provedor de dados: 31
Autores: Bhattarai,   Madhusudan; Sakthivadivel,   Ramasamy; Hussain,   Intizar.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Policy; Income; Poverty; Social aspects; Economic aspects; Water allocation; Irrigation canals; Irrigated farming; Farm Management; Food Security and Poverty; Production Economics; Resource /Energy Economics and Policy.
Ano: 2002
URL: http://purl.umn.edu/92694

Impacts of irrigation management transfer:  A review of the evidence.
Provedor de dados: 31
Autores: Vermillion,   Douglas Lynn.
Evaluates data from 29 different studies on irrigation management transfer to assess the impacts of transfer on various aspects of irrigation system management. Twelve guiding principles to ensure a more systematic approach to research on the impacts of management transfer are proposed. Identifies key research propositions on the conditions necessary for transfer programs to succeed.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Irrigation systems; Policy; Privatization; Case studies; Performance evaluation; Irrigated farming; Economic aspects; Financing; Operations; Environmental sustainability; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Institutional and Behavioral Economics; Productivity Analysis.
Ano: 1997
URL: http://purl.umn.edu/52798

Need for institutional impact assessment in planning irrigation system modernization
Provedor de dados: 31
Autores: Bandaragoda,   Don Jayatissa.
Presents a case study of the institutional implications of remodeling an old irrigation system in northern Pakistan. Highlights the importance for donors and project planners to consider institutional issues such as water allocation rules, operation procedures, and organizational capacity for post-construction system management along with changes to the physical infrastructure.
Tipo: Report
Palavras-chave: Irrigation management; Irrigation systems; Water allocation; Rehabilitation; Modernization; Case studies; Institutional constraints; Operations; Maintenance; Irrigation canals; Irrigation effects; Pakistan; Lower Swat Canal; Agribusiness; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Institutional and Behavioral Economics; Land Economics/Use; Production Economics; Resource /Energy Economics and Policy.
Ano: 1998
URL: http://purl.umn.edu/52967

The role of research-supported irrigation policy in sustainable irrigated agriculture: an interpretive precis of the case of Pakistan
Provedor de dados: 31
Autores: Bandaragoda,   Don Jayatissa.
Tipo: Book
Palavras-chave: Irrigation management; Research; Policy; Privatization; Sustainable agriculture; Irrigated farming; Performance; Institutions; Groundwater; Tube wells; Water allocation; Crop Production/Industries; Farm Management; Institutional and Behavioral Economics.
Ano: 1993
URL: http://purl.umn.edu/113860

Capacity building for participatory irrigation management in Sindh Province of Pakistan.
Provedor de dados: 31
Autores: Memon,   Yameen; Talpur,   Mustafa; Murray-Rust,   Hammond.
Tipo: Working or Discussion Paper
Palavras-chave: River basins; Institutions; Organizations; Private sector; Public sector; Local government; Mapping; Water resource management; Water policy; Legislation; Rural women; Constraints; Groundwater; Surface water; Water quality; Water use; Water users; Dams; Reservoirs; Large-scale systems; Irrigation management; Industrialization; Case studies; Operations; Maintenance; Canals; Conflict; Farmer-agency interactions; Policy; Water supply; Rural development; Community/Rural/Urban Development; Farm Management; Institutional and Behavioral Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/92769

Elixir or opiate? An assessment of minor irrigation policies in North Bengal
Provedor de dados: 31
Autores: Shah,   Tushaar.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Agricultural development; Farmer managed irrigation systems; Social aspects; Organizations; Farmers’ associations; Subsidies; Policy; Participatory management; Governmental interrelations; Small scale systems; Performance evaluation; Economic aspects; Deep tube wells; Shallow tube wells; Lift irrigation; Rural development; Poverty alleviation; Pumps; Technology transfer; Cooperatives; Mechanization; Institutions; Leadership; Agricultural and Food Policy; Agricultural Finance; Farm Management; Food Security and Poverty; Institutional and Behavioral Economics; Public Economics; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/92706

Evolution, present status and issues concerning small tank systems in Sri Lanka [Small tanks in Sri Lanka: evolution, present status and issues]
Provedor de dados: 31
Autores: Panabokke,   Christopher Rajendra; Sakthivadivel,   Ramasamy; Dias Weerasinghe,   Asoka.
Tipo: Book
Palavras-chave: Tank irrigation; Small scale systems; History; Irrigation systems; Design; Maintenance; Hydrology; Pollution; Irrigation management; Cultivation; Farming systems; Wells; Crop Production/Industries; Farm Management.
Ano: 2002
URL: http://purl.umn.edu/113505

Institutions for integrated water-resources management in river basins: A synthesis of IWMI research.
Provedor de dados: 31
Autores: Kurian,   Mathew.
Tipo: Working or Discussion Paper
Palavras-chave: River basin development; Water resource management; Poverty; Irrigation management; Farmers’ associations; Institutional development; Farm Management; Food Security and Poverty; Institutional and Behavioral Economics; Resource /Energy Economics and Policy.
Ano: 2004
URL: http://purl.umn.edu/92518

Financing irrigation services: a literature review and selected case studies from Asia
Provedor de dados: 31
Autores: Small,   Leslie E.; Adriano,   Marietta S.; Martin,   Edward D.; Bhatia,   Ramesh; Shim,   Young K.; Pradhan,   Prachanda.
This study results from a two years' intensive research into a hitherto unexplored area of irrigation management - the aspect of financing irrigation in some Asian countries.  The authors have analyzed the relationship between investment costs, level of irrigation fees, cropping intensity, type of crop, and secondary income.  The studies conclude that the quality of irrigation system operations and maintenance is affected not only by the amount of resources made available to operate and maintain systems, but also by the institutional arrangements under which they are provided.
Tipo: Book
Palavras-chave: Irrigation management; Irrigation operation; Financing; Resource management; Rehabilitation; User charges; Maintenance costs; Operating costs; Agricultural Finance; Farm Management.
Ano: 1989
URL: http://purl.umn.edu/114041

Land settlement planning issues in irrigation management:  A review of experiences in Sri Lanka
Provedor de dados: 31
Autores: Stanbury,   Pamela.
This document is meant to present a framework for analyzing the institutions related to water management in a river basin context. The design of the five-country regional study undertaken by IWMI on “Development of Effective Water Management Institutions” provided a new methodology and a framework for river basin studies. It consists of four key components of diagnostic investigations related to water resources management in a river basin, which are interrelated. These key components are the physical system, water accounting, socioeconomic situation and performance. This study design is given in the Study’s Inception Report of 15 June 1999, and the Methodological Guidelines of 1 October 1999. This document takes one step further, and provides a conceptual...
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Settlement; Planning; Land management; Sri Lanka; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Land Economics/Use; Political Economy; Public Economics; Resource /Energy Economics and Policy.
Ano: 1988
URL: http://purl.umn.edu/53072

2nd Forum on Irrigation and water for sustainable development: 15 –16 December, 2008 Ghion Hotel, Addis Ababa, Ethiopia
Provedor de dados: 31
Autores: Awulachew,   Seleshi Bekele; Erkossa,   Teklu; Balcha,   Yodit.
Tipo: Presentation
Palavras-chave: Sustainable development; Irrigation management; Irrigation water; Irrigated farming; Irrigation systems; Supplemental irrigation; Land management; Land use; Investment; Case studies; Government policy; Rural poverty; Groundwater; Small scale systems; Socioeconomic development; Economic aspects; Economic growth; Income; Water management; Water resources development; Water harvesting; Water supply; Public policy; Agricultural production; Developing countries; Public-private cooperation; History; Case studies; River basins; Crop production; Agricultural and Food Policy; Agricultural Finance; Crop Production/Industries; Farm Management; Financial Economics; Food Security and Poverty; Institutional and Behavioral Economics; Land Economics/Use; Production Economics; Public Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/118411

Water users' association in Pillayarkulam Tank: farmers' experience
Provedor de dados: 31
Autores: Neelavalli,   B.
Tipo: Book
Palavras-chave: Water users associations; Farmers associations; Farmer participation; Farmers attitudes; Irrigation management; Tank irrigation; Maintenance; Farm Management; Institutional and Behavioral Economics.
Ano: 1995
URL: http://purl.umn.edu/113696

Pro-poor irrigation management transfer?
Provedor de dados: 31
Autores: International Water Management Institute,   IWMI-TATA Water Policy Program.
Driven largely by financial pressures, many governments are transferring full or partial management responsibility for irrigation systems from government agencies to farmers organized into Water User Associations (WUAs). In most cases, improving the situation of poor farmers has been a secondary aim of this reform. But there is increasing evidence that Irrigation Management Transfer (IMT) can actually negatively impact the situation of poor farmers—and, in extreme cases, can even cause the collapse of irrigation schemes. New research assessed two different IMT programs: The Gujarat Participatory Irrigation Management (PIM) program, one of the first IMT programs in India, and the Andhra Pradesh Farmers’  Management of Irrigation Systems (APFMIS) program,...
Tipo: Report
Palavras-chave: Irrigation management; Privatization; Poverty; Farmers associations; Water users associations; Agricultural and Food Policy; Farm Management; Food Security and Poverty.
Ano: 2003
URL: http://purl.umn.edu/113066

Water for rural development:  Background paper on water for rural development prepared for the World Bank
Provedor de dados: 31
Autores: Molden,   David J.; Amarasinghe,   Upali A.; Hussain,   Intizar.
Tipo: Working or Discussion Paper
Palavras-chave: Water management; Irrigation management; Rural development; Water resources development; Small scale systems; Land management; Groundwater; Environment; Health; Water policy; Institutions; Food consumption; Water supply; Water demand; Water allocation; Crop yield; Cereals; Water scarcity; Food production; Food security; Crop production; Population growth; Crop Production/Industries; Environmental Economics and Policy; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Health Economics and Policy; Institutional and Behavioral Economics; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/92777

DYNAMICS AND UNCERTAINTY IN ENVIRONMENTAL AND NATURAL RESOURCE MANAGEMENT UNDER SCARCITY: THE CASE OF IRRIGATION
Provedor de dados: 31
Autores: Bontemps,   Christophe; Couture,   Stephane.
The objective of this paper is to study the problem of management of irrigation water. We analyse farmers' economic rules of tactical irrigation scheduling in a certain or uncertain environment under water scarcity. The optimal plans depend on uncertain weather conditions and expectations.  We develop a dynamic economic model of irrigation water applications under certain or uncertain weather conditions and in the context of a limited total quantity of water. We program this economic model, introducing the agronomic model EPIC, which is used to obtain information on the crop yield. The model is used to explain the optimal irrigation management plan of corn in the area of Toulouse (France). This model improves water management and leads to substantial...
Tipo: Conference Paper or Presentation
Palavras-chave: Dynamic optimization; Irrigation management; Agroeconomic modeling; Uncertainty; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 1999
URL: http://purl.umn.edu/21504

Irrigation against rural poverty: an overview of issues and pro-poor intervention strategies in irrigated agriculture in Asia; Proceedings of National Workshops on Pro-Poor Intervention Strategies in Irrigated Agriculture in Asia, Bangladesh, China, India, Indonesia, Pakistan and Vietnam [9-10 August 2001, Colombo, Sri Lanka]
Provedor de dados: 31
Tipo: Presentation
Palavras-chave: Irrigation management; Water resources; Poverty; Sustainability; Rural development; Irrigated farming; Performance evaluation; Case studies; Large scale systems; Surface irrigation; Water use efficiency; Water scarcity; Water policy; Productivity; Farm Management; Food Security and Poverty; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/118406

Irrigation management in Pakistan and India: Comparing notes on institutions and policies
Provedor de dados: 31
Autores: Shah,   Tushaar; Hussain,   Intizar; Rehman,   Saeed ur.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Productivity; Privatization; Groundwater irrigation; Irrigated farming; Equity; Water distribution; Groundwater management; Economic aspects; Tube wells; Price policy; Electricity supplies; Pumps; Demand and Price Analysis; Farm Management; Productivity Analysis; Public Economics; Resource /Energy Economics and Policy.
Ano: 2000
URL: http://purl.umn.edu/92782

Impacts of Colombia's current irrigation management transfer program
Provedor de dados: 31
Autores: Vermillion,   Douglas Lynn; Garces-Restrepo,   Carlos.
Assess the impacts of the current national irrigation management transfer program in Colombia. Examines the context of transfer, the basic transfer strategy, the impacts of transfer, and the powers and functions devolved in the transferred districts. The need to use the transfer process to create local management self-reliance is also stressed.
Tipo: Report
Palavras-chave: Privatization; Irrigation management; Irrigated farming; Policy; Costs; Economic aspects; Operations; Maintenance; Agricultural production; Agricultural and Food Policy; Crop Production/Industries; Environmental Economics and Policy; Production Economics; Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 1998
URL: http://purl.umn.edu/44584

Valuing water in irrigated agriculture and reservoir fisheries:  A multiple-use irrigation system in Sri Lanka
Provedor de dados: 31
Autores: Renwick,   Mary E.
Although irrigation projects often provide water for more than crop irrigation, water allocation and management decisions often do not account for nonirrigation uses of water. Failure to account for the multiple uses of irrigation water may result in inefficient and inequitable water allocation decisions. Decision-makers often lack information on the relative economic contributions of water in irrigation and nonirrigation uses. This report addresses this problem. It examines the relative economic contributions of irrigated agriculture and reservoir fisheries in the Kirindi Oya irrigation system, located in southeastern Sri Lanka. The results of the analysis indicate the importance of both irrigated paddy production and reservoir fisheries to the local...
Tipo: Report
Palavras-chave: Irrigation management; Water management; Irrigation programs; Irrigated farming; Rice; Production costs; Income; Economic evaluation; Water allocation; Water delivery; Fisheries; Reservoirs; Productivity; Crop production; Models; Family labor; Agribusiness; Agricultural Finance; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Food Security and Poverty; Labor and Human Capital; Productivity Analysis.
Ano: 2001
URL: http://purl.umn.edu/44569

Irrigation management transfer in the Columbia Basin: lessons and international implications
Provedor de dados: 31
Autores: Svendsen,   Mark; Vermillion,   Douglas Lynn.
Tipo: Book
Palavras-chave: Irrigation management; Farmer managed irrigation systems; Privatization; Irrigation efficiency; Irrigation effects; Project appraisal; Financing; Developing countries; Farm Management; Financial Economics.
Ano: 1994
URL: http://purl.umn.edu/114043

National Conferencs on Water, Food Security and Climate Change in Sri Lanka, Volume 3; Proceeding of the Policies, Institutions and Data Needs for Water Management, BMICH, Colomba June 9-11, 2009
Provedor de dados: 31
Tipo: Presentation
Palavras-chave: Water resource management; Water governance; Organizations; Institutions; Water policy; Water rights; Irrigation management; Participatory management; Farmers organizations; Capacity building; Irrigation efficiency; Water demand; Water supply; Irrigation schemes; Operations; Maintenance; Groundwater management; Models; Economic analysis; Food security; Farm Management; Financial Economics; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Industrial Organization; Institutional and Behavioral Economics; Political Economy; Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 2010
URL: http://purl.umn.edu/118415

Centre Commissioned External Review (CCER) of the IWMI-TATA Water Policy Research Program.
Provedor de dados: 31
Autores: Burke,   Jacob J.; Joshi,   Deep; Chopra,   Ravi.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural research; Research projects; Project appraisal; Financing; Institutional development; Evaluation; Water policy; Water management; Irrigation management; Groundwater; Agricultural and Food Policy; Agricultural Finance; Financial Economics; Institutional and Behavioral Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods.
Ano: 2005
URL: http://purl.umn.edu/92021

An assessment of small-scale users’ inclusion in large-scale water user associations of South Africa
Provedor de dados: 31
Autores: Faysse,   Nicolas.
Tipo: Report
Palavras-chave: Farmers’ associations; Water users’ associations; Water resource management; Irrigation management; Catchment areas; Legislation; Legal aspects; Water allocation; Farmer participation; Decision making; Case studies; South Africa; Agricultural and Food Policy; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Financial Economics; Institutional and Behavioral Economics; Land Economics/Use; Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 2004
URL: http://purl.umn.edu/52969

Robbing Yadullah’s water to irrigate Saeid’s garden: hydrology and water rights in a village of Central Iran
Provedor de dados: 31
Autores: Molle,   Francois; Mamanpoush,   Alireza; Miranzadeh,   Mokhtar.
This report provides a case study from the province of Esfahan, in central Iran, describing the struggle of a village to secure the water resources without which local agriculture, and altogether life in the village, would be impossible. It illustrates the endless ingenuity of farmers in their quest for water, how land and water rights have developed, how various legal repertoires may conflict with one another, and how the intervention of the state transformed the wider hydrological cycle of the valley and affected the delicate equilibrium between population and resources that had prevailed until then. The report estimates the costs of accessing one cubic meter from each of these different sources and shows how political interventions or drought mitigation...
Tipo: Report
Palavras-chave: Water allocation; Water rights; Irrigation management; Drought; Wells; Dams; Canals; Legal aspects; Villages; Iran; Zayandeh Rud Basin; Jalalabad; Najafabad; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use; Public Economics; Resource /Energy Economics and Policy.
Ano: 2004
URL: http://purl.umn.edu/53063

The baseline survey of 3 pilot water user associations in the Ferghana Valley
Provedor de dados: 31
Autores: Takubov,   Murat; Matyakubov,   Bakhtiyar.
Tipo: Book
Palavras-chave: Water users associations; Surveys; Water resource management; Farm income; Crop production; Livestock; Cropping systems; Watercourses; Irrigation management; User charges; Farmers attitudes; Water delivery; Irrigation canals; Crop Production/Industries; Farm Management.
Ano: 2004
URL: http://purl.umn.edu/113509

Reducing poverty through integrated management of groundwater and surface water
Provedor de dados: 31
Autores: International Water Management Institute (IWMI); Global Water Partnership (GWP Advisory Center).
The full poverty-fighting potential of existing irrigation schemes is not being realized—largely because of inequitable water distribution and unsustainable land and water management practices. An integrated water resources management (IWRM) approach reveals opportunities to reduce poverty and improve overall agricultural productivity and sustainability in these systems. Research in India and Pakistan has highlighted one such opportunity—integrated management of surface water and groundwater—that has great potential for water-short systems with variable groundwater resources. By considering groundwater availability and quality when allocating surface water, water managers could improve the situation of millions of poor farmers with inadequate access to...
Tipo: Report
Palavras-chave: Groundwater management; Irrigation management; Domestic water; Poverty; Farm Management; Food Security and Poverty; Productivity Analysis.
Ano: 2005
URL: http://purl.umn.edu/113059

Institutions for integrated water-resources management in river basins: An analytical framework.
Provedor de dados: 31
Autores: Kurian,   Mathew.
Tipo: Working or Discussion Paper
Palavras-chave: Water resource management; River basins; Crop production; Institution building; Conflict; Irrigation management; Crop Production/Industries; Institutional and Behavioral Economics; Resource /Energy Economics and Policy.
Ano: 2004
URL: http://purl.umn.edu/92522

Synthesis of IWMI work in Nepal
Provedor de dados: 31
Autores: Pant,   Dhruba; Samad,   Madar.
The International Water Management Institute (IWMI) has been working in Nepal since 1986 with the objective of undertaking research in water management and to strengthen the research capabilities of concerned government agencies. The research helped to develop appropriate mechanisms for providing support to Farmer-Managed Irrigation Systems (FMIS) and the initiation of participatory irrigation management (PIM). The river basin studies helped policy formulation for integrated planning and management of water resources besides the methodological contribution through the development of appropriate tools for water management studies. It also contributed to enhancing the capabilities of agency officials and local researchers through their involvement in...
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Irrigation systems; Privatization; Farmer managed irrigation systems; River basin management; Water users associations; Policy; Groundwater management; Gender; Women; Capacity building; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Labor and Human Capital; Resource /Energy Economics and Policy.
Ano: 2010
URL: http://purl.umn.edu/95762

China’s water pricing reforms for irrigation: effectiveness and impact
Provedor de dados: 31
Autores: Liao,   Yongsong; Gao,   Zhanyi; Bao,   Ziyun; Huang,   Qingwen; Feng,   Guangzhi; Xu,   Di; Cai,   Jiabin; Han,   Huijing; Wu,   Weifeng.
Irrigation occupies a central position in China’s crop production. However, due to low per capita water resources, much worse, unevenly distributed over regions and time and the rapid increase of water diversions to non-irrigation sectors, irrigation water shortages have become a very serious problem. Without the adoption of effective measures this problem may even threaten China’s food security. Currently, irrigation efficiency is very low in general, irrigation water prices cannot fully recover water supply costs, and irrigation facilities are aging due to the lack of funding for O&amp;M (operation &amp; maintenance). Since water prices are regulated by the government, and not determined by the market, water prices did not work effectively in water...
Tipo: Working or Discussion Paper
Palavras-chave: Water rates; Pricing; Price policy; Cost recovery; Farmers attitudes; Water rights; Water market; Water supply; User charges; Irrigation water; Water allocation; Irrigation management; Participatory management; Water conservation; Institutions; Organizations; Water users associations; Cereals; Yields; Models; Labor; Cost benefit analysis; Irrigation requirements; Investment; Groundwater management; Wells; Irrigation canals; Food security; Legal aspects; Crop Production/Industries; Farm Management; Food Security and Poverty; Production Economics; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/91872

Farmer-based financing of operations in the Niger Valley irrigation schemes
Provedor de dados: 31
Autores: Abernethy,   Charles L.; Sally,   Hilmy; Lonsway,   Kurt; Maman,   Chegou.
Presents the results of case-studies of the functioning of four pump-based irrigation systems in the Niger River Valley. Prospects for sustainability are analyzed, especially in the light of the government's policy of promoting irrigator organizations to take over responsibilities for operation and maintenance.
Tipo: Report
Palavras-chave: Irrigation management; Irrigation systems; River basin development; Sustainability; Water resources development; Low-lift irrigation; Low-lift pumps; Farmer managed irrigation systems; Farmers' associations; Institution building; Privatization; Performance evaluation; Constraints; Case studies; Financing; Costs; Climate; Food production; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Crop Production/Industries; Environmental Economics and Policy; Food Consumption/Nutrition/Food Safety; Production Economics; Public Economics.
Ano: 2000
URL: http://purl.umn.edu/44573

Irrigation and Water for Sustainable Development; Proceedings of the Second Forum December 15-16, 2008, Addis Ababa, Ethiopia
Provedor de dados: 31
Autores: Awulachew,   Seleshi Bekele; Erkossa,   Teklu; Balcha,   Yodit.
Tipo: Presentation
Palavras-chave: Sustainable development; Irrigation management; Supplemental irrigation; Land management; Investment; Case studies; Public sector; Private sector; Cooperation; Government policy; Rural poverty; Food Security and Poverty; Land Economics/Use; Research Methods/ Statistical Methods.
Ano: 2008
URL: http://purl.umn.edu/118400

Private irrigation in Sub-Saharan Africa; Regional Seminar on Private Sector Participation and Irrigation Expansion in sub-Saharan Africa, Proceedings 22-26 October 2011, Accra, Ghana
Provedor de dados: 31
Tipo: Presentation
Palavras-chave: Irrigation management; Privatization; Irrigated farming; Financing; Irrigation systems; Gender; Women; Government managed irrigation systems; Farmer managed irrigation systems; Rice; Horticulture; Technology transfer; Pumps; Drip irrigation; Filtration; Capacity building; Urban agriculture; Poverty; Water users associations; Agricultural credit; Agricultural and Food Policy; Agricultural Finance; Farm Management; Financial Economics; Food Security and Poverty; Institutional and Behavioral Economics; Labor and Human Capital.
Ano: 2002
URL: http://purl.umn.edu/118418

Strategic analysis of water institutions in India: Application of a new research paradigm
Provedor de dados: 31
Autores: Saleth,   Rathinasamy Maria.
The overall objective of this paper is to outline the analytical framework and theoretical approach underlying a new research paradigm and illustrate how this paradigm can be used for the strategic analysis of water institutions by applying it to the Indian context.
Tipo: Report
Palavras-chave: Water management; Irrigation management; Institutions; Water law; Water rights; Water policy; Cost recovery; Price policy; Private sector; Public sector; Privatization; Financing; Conflict; Groundwater; Water market; Farmers’ associations; Water users’ associations; Agribusiness; Agricultural Finance; Crop Production/Industries; Farm Management; Land Economics/Use; Production Economics.
Ano: 2004
URL: http://purl.umn.edu/44545

Water users' association in Bhestan Minor (Mohini), Ukai Kakrapar Project: farmers' experience
Provedor de dados: 31
Autores: Patel,   Jayeshkumar S.
Tipo: Book
Palavras-chave: Irrigation management; Water users associations; Cooperatives; Farmers attitudes; Leadership; Water distribution; Farm Management; Institutional and Behavioral Economics.
Ano: 1995
URL: http://purl.umn.edu/113698

Accounting for water use and productivity
Provedor de dados: 31
Autores: Molden,   David J.
This paper presents a conceptual framework for water accounting and provides generic terminologies and procedures to describe the status of water resource use and consequences of water resources related actions. The framework applies to water resource use at three levels of analysis: a use level such as an irrigated field or household, a service level such as an irrigation or water supply system, and a water basin level that may include several uses. Water accounting terminology and performance indicators are developed and presented with examples at all the three levels. Concepts and terminologies presented are developed to be supportive in a number of activities including: identification of opportunities for water savings and  increasing water...
Tipo: Book
Palavras-chave: Water management; Irrigation management; Water supply; Terminology; Performance indexes; Water use; Water allocation; Productivity; Water balance; Crop Production/Industries; Farm Management; Productivity Analysis.
Ano: 1997
URL: http://purl.umn.edu/113623

Irrigation management transfer in Mexico:  A strategy to achieve irrigation district sustainability
Provedor de dados: 31
Autores: Johnson,   Sam H., III.
Describes the process of transfer of irrigation districts in Mexico from public ownership to joint management, where responsibility for irrigation O&amp;M is shared between the public irrigation agency and water user associations. It evaluates the sustainability of transferred systems and discusses needed changes.
Tipo: Report
Palavras-chave: Irrigation management; Privatization; Participatory management; Agricultural production; Sustainability; Private sector; Public sector; Economic aspects; Water users' associations; Investment; Agricultural policy; Irrigated farming; Water law; User charges; Land ownership; Mexico; Agribusiness; Agricultural and Food Policy; Agricultural Finance; Community/Rural/Urban Development; Crop Production/Industries; Food Consumption/Nutrition/Food Safety; Institutional and Behavioral Economics; Land Economics/Use; Marketing; Production Economics.
Ano: 1997
URL: http://purl.umn.edu/52799

Charging for irrigation water:  The issues and options, with a case study from Iran
Provedor de dados: 31
Autores: Perry,   Christopher J.
Inadequate funding for maintenance of irrigation works and emerging shortages of water are prevalent. The use of water charges to generate resources for maintenance and to reduce demand is widely advocated. Examples from other utilities, and from the domestic/industrial sectors of water supply suggest the approach could be effective. In developing countries, the facilities required for measured and controlled delivery of irrigation are rarely in place, and would require a massive investment in physical, legal and administrative infrastructure. To be effective in curtailing demand, the marginal price of water must be significant. The price levels required to cover operation and maintenance (O&amp;M) costs are too low to have a substantial impact on demand,...
Tipo: Report
Palavras-chave: Irrigation management; Productivity; Water allocation; Water use efficiency; Operations; Maintenance; Cost recovery; User charges; Water rates; Pricing; River basins; Water shortage; Economic aspects; Salinity; Case studies; Agribusiness; Agricultural Finance; Community/Rural/Urban Development; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Financial Economics; Land Economics/Use; Production Economics; Productivity Analysis; Public Economics.
Ano: 2001
URL: http://purl.umn.edu/44567

Capacity building for participatory irrigation management in Sindh Province of Pakistan.
Provedor de dados: 31
Autores: Memon,   Yameen; Talpur,   Mustafa; Murray-Rust,   Hammond.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Participatory management; Distributary canals; Watercourses; Institution building; Farmers' associations; Social organization; Training; Farmer managed irrigation systems; Irrigated farming; Irrigation canals; Water distribution; Farm Management; Institutional and Behavioral Economics.
Ano: 2001
URL: http://purl.umn.edu/92785

Assessment of performance and impact of irrigation and water resources  systems in Taiwan and Sri Lanka: Final report
Provedor de dados: 31
Autores: Sakthivadivel,   Ramasamy; Aloysius,   Noel; Matsuno,   Yutaka.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation systems; Water scarcity; Water allocation; Water supply; Water quality; Water distribution; Decision making; Water management; Regression analysis; Performance evaluation; Sustainability; Irrigated farming; Agricultural development; Farm size; Irrigation management; Farmers' associations; Rain; Paddy cultivation; Crop yield; Costs; Productivity; Crop Production/Industries; Farm Management; Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/92774

Land settlement planning issues in irrigation management:  A review of experiences in Sri Lanka.
Provedor de dados: 31
Autores: Stanbury,   Pamela.
This document is meant to present a framework for analyzing the institutions related to water management in a river basin context. The design of the five-country regional study undertaken by IWMI on “Development of Effective Water Management Institutions” provided a new methodology and a framework for river basin studies. It consists of four key components of diagnostic investigations related to water resources management in a river basin, which are interrelated. These key components are the physical system, water accounting, socioeconomic situation and performance. This study design is given in the Study’s Inception Report of 15 June 1999, and the Methodological Guidelines of 1 October 1999. This document takes one step further, and provides a conceptual...
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Settlement; Planning; Land management; Sri Lanka; Agricultural and Food Policy; Crop Production/Industries; Farm Management; Land Economics/Use.
Ano: 1988
URL: http://purl.umn.edu/52783

Poverty dimensions of irrigation management transfer in large-scale canal irrigation in Andhra Pradesh and Gujarat, India
Provedor de dados: 31
Autores: van Koppen,   Barbara; Parthasarathy,   R.; Safiliou,   Constantina.
A growing body of evidence on the impacts of irrigation management transfer (IMT) shows that IMT risks aggravating rural poverty. For governments that aim to continue irrigation management while ensuring that it contributes to poverty alleviation, a "pro-poor" mode of IMT needs to be designed and implemented. That is, a mode of IMT that benefits poor farmers while benefiting non-poor farmers equally, or perhaps to a lesser degree. The present research explores the scope for pro-poor modes of IMT in canal irrigation, focusing on large-scale canal irrigation schemes in India.
Tipo: Report
Palavras-chave: Irrigation management; Privatization; Poverty; Farm size; Landlessness; Tenancy; Water users’ associations; Irrigation canals; Large-scale systems; Water distribution; Cost recovery; Agribusiness; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Land Economics/Use.
Ano: 2002
URL: http://purl.umn.edu/44564

Changes in water duties and their impact on agricultural production: the case of Girsal Minor
Provedor de dados: 31
Autores: Strosser,   Pierre; Afaq,   Rana M.; Garces,   Carlos.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Canal irrigation; Water supply; Water management; Watercourses; Tube wells; Agricultural production; Crop yield; Wheat; Crop Production/Industries; Farm Management; Production Economics.
Ano: 1993
URL: http://purl.umn.edu/114046

Strategic Analyses of the National River Linking Project (NRLP) of India Series 5; Proceedings of the Second National Workshop on Strategies Issues in Indian Irrigation
Provedor de dados: 31
Autores: International Water Management Institute (IWMI).
Tipo: Presentation
Palavras-chave: Irrigation management; Institutional reform; Surface irrigation; River basin management; Water transfer; Investment; Irrigation programs; Policy; Water users associations; Groundwater management; Groundwater recharge; Water supply; Drinking water; Watershed management; Crops; Crop Production/Industries; Financial Economics; Institutional and Behavioral Economics; Resource /Energy Economics and Policy.
Ano: 2009
URL: http://purl.umn.edu/118413

Gender and irrigation in India: the Women's Irrigation Group of Jambar, South Gujarat.
Provedor de dados: 31
Autores: van Koppen,   Barbara; Nagar,   Rashmi K.; Vasavada,   Shilpa.
Documents a "best practice" - a successful gender-balanced irrigation intervention in which women were given control over an irrigation technology. The study evaluates the approach taken by the implementing NGO, the Aga Khan Rural Support Programme, in terms of its replicability in other areas where women share in farm activities and decision making.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Women in development; Gender; Female labor; Agricultural credit; Decision making; Irrigation programs; Rain-fed farming; Institution building; Pumping; India; South Gujarat; Bharuck; Jambar; Agribusiness; Agricultural Finance; Community/Rural/Urban Development; Farm Management; Food Consumption/Nutrition/Food Safety; Production Economics; Public Economics; Risk and Uncertainty.
Ano: 2001
URL: http://purl.umn.edu/51045

A gender performance indicator for irrigation:  Concepts, tools and applications
Provedor de dados: 31
Autores: van Koppen,   Barbara.
Although gender issues are today a priority on the agendas of irrigation policy makers, interventionists, farm leaders and researchers, there is still a considerable gap between positive intentions and concrete action. An important but hitherto ignored reason for this is the lack of adequate generic concepts and tools that are policy-relevant and can accommodate the vast variation in irrigation contexts worldwide. The Gender Performance Indicator for Irrigation (GPII) aims to fill this gap. In any particular scheme, this tool diagnoses the gendered organization of farming and gender-based inclusion or exclusion in irrigation institutions. It informs irrigation agencies what they themselves can do for effective change-if necessary. The tool also identifies...
Tipo: Report
Palavras-chave: Gender; Women; Irrigation management; Water management; Policy; Decision making; Performance evaluation; Indicators; Irrigated farming; Farming systems; Case studies; Water users' associations; Leadership; Agribusiness; Agricultural and Food Policy; Agricultural Finance; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Productivity Analysis.
Ano: 2002
URL: http://purl.umn.edu/44562

Impact of management interventions on the performance of five irrigation schemes in Sri Lanka
Provedor de dados: 31
Autores: Imbulana,   K.A.U.S.; Merrey,   Douglas J.
This working paper is the outcome of a data collection process initiated under the advice of Dr. Shigeo Yashima of the International Irrigation Management Institute (IIMI). The objective of this data collection process was to make a preliminary assessment of irrigation performance in Sri Lanka using irrigation systems with different backgrounds to identify areas for further research.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation programs; Performance evaluation; Irrigation management; Intervention; Irrigation systems; Monitoring; Performance indexes; History; Farmers associations; Farmer participation; Farmer-agency interactions; Communication; Organizations; Water potential; Rice; Crop yield; Water supply; Land productivity; Rain; Data collection; Farm Management; Institutional and Behavioral Economics; Land Economics/Use.
Ano: 1995
URL: http://purl.umn.edu/113609

Irrigation management training for institutional development: a case study from Malaysia
Provedor de dados: 31
Autores: Franca,   Zenete Peixoto.
Tipo: Book
Palavras-chave: Irrigation management; Training; Strategy planning; Human resources; Institutional development; Case studies; Crop Production/Industries; Institutional and Behavioral Economics; Teaching/Communication/Extension/Profession.
Ano: 1994
URL: http://purl.umn.edu/113862

Institutional design principles for accountability in large irrigation systems.
Provedor de dados: 31
Autores: Merrey,   Douglas J.
Argues that single irrigation systems managed by autonomous system-specific organizations accountable to their customers, perform better and are more sustainable than those managed by agencies dependent on the government, or by agencies responsible for multiple systems. Selected cases are reviewed and the plausibility of this hypothesis established. General recommendations are made for policy makers designing irrigation reform programs.
Tipo: Report
Palavras-chave: Irrigation management; Government-managed irrigation systems; Large-scale systems; Organizational design; Water users' associations; Water users; Farmers' associations; Farmer participation; Sustainability; Water rights; Performance evaluation; Performance indexes; Participatory management; Privatization; Policy; Research methods; Case studies Nepal; Sri Lanka; Indonesia; Agribusiness; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Financial Economics; Food Security and Poverty; Labor and Human Capital; Land Economics/Use; Marketing; Production Economics; Productivity Analysis; Public Economics.
Ano: 1996
URL: http://purl.umn.edu/52732

Irrigation and water policies in the Mekong region: Current discourses and practices
Provedor de dados: 31
Autores: Molle,   Francois.
Tipo: Report
Palavras-chave: Water resource management; Water policy; Water law; Participatory management; Irrigation management; River basins; Governance; South East Asia; Thailand; Cambodia; Laos; Vietnam; Myanmar; China; Mekong Region; Community/Rural/Urban Development; Environmental Economics and Policy; Farm Management; Institutional and Behavioral Economics; Land Economics/Use; Political Economy; Resource /Energy Economics and Policy.
Ano: 2005
URL: http://purl.umn.edu/53062

A well of one's own: gender analysis of an irrigation program in Bangladesh
Provedor de dados: 31
Autores: Jordans,   Eva H.; Zwarteveen,   Margreet Z.
Tipo: Book
Palavras-chave: Irrigation management; Groundwater irrigation; Gender; Women in development; Poverty; Households; Agricultural production; Privatization; Farm Management; Food Security and Poverty.
Ano: 1997
URL: http://purl.umn.edu/113611

Estimating water requirements and water storage requirements for farms, community and backyard gardens, and for large irrigation systems: A user manual for PLANWAT Version 1.2.3b and a CD-ROM to install this program
Provedor de dados: 31
Autores: van Heerden,   Pieter S.
Tipo: Working or Discussion Paper
Palavras-chave: Computer models; Computer software; Irrigation requirements; Estimation; Irrigated farming; Irrigation management; Water harvesting; Water requirements; Water storage; Production Economics; Research and Development/Tech Change/Emerging Technologies; Resource /Energy Economics and Policy.
Ano: 2004
URL: http://purl.umn.edu/92657

Impact assessment of irrigation management transfer in the Alto Rio Lerma Irrigation District, Mexico
Provedor de dados: 31
Autores: Kloezen,   Wim H.; Garces-Restrepo,   Carlos; Johnson,   Sam H., III.
Tests the hypothesis that, in general, irrigation management transfer has positive impacts on operation performance, managerial accountability, O&amp;M budgeting and expenditures, costs of water to farmers, and agricultural and economic productivity in the Alto Rio Lerma Irrigation District in Mexico. Evaluates the potential of the Mexican IMT process as a model for other countries.
Tipo: Report
Palavras-chave: Irrigation management; Privatization; Assessment; Economic aspects; Legal aspects; Data collection; Water rights; Water allocation; Water distribution; Groundwater; Financing; Maintenance; Operations; Agricultural production; Water users' associations; Farmer participation; Mexico; Alto Rio Lerma Irrigation District; Agricultural and Food Policy; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Resource /Energy Economics and Policy.
Ano: 1997
URL: http://purl.umn.edu/61110

A proposed framework for irrigation management transfer in Iran: Lessons from Asia and Iran.
Provedor de dados: 31
Autores: Ul Hassan,   Mehmood; Qureshi,   Asad Sarwar; Heydari,   Nader.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Privatization; Water policy; Economic aspects; Institutional development; Water users associations; Irrigation systems; Irrigation canals; Resource /Energy Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/91875

Empowerment of farmer organizations: case study of Farmer Managed Irrigated Agriculture Project, Sindh.
Provedor de dados: 31
Autores: Murray-Rust,   Hammond; Memon,   Yameen; Talpur,   Mustafa.
Tipo: Working or Discussion Paper
Palavras-chave: Farmer managed irrigation systems; Farmers' associations; Irrigation programs; Case studies; Irrigation management; Water management; Irrigated farming; Farmer participation; Legal aspects; Institution building; Farm Management; Institutional and Behavioral Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/92779

Opportunities for private sector participation in agricultural water development and management
Provedor de dados: 31
Autores: Penning de Vries,   Frits W.T.; Sally,   Hilmy; Inocencio,   Arlene.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Private sector; Public sector; Public policy; Private investment; Participatory management; Privatization; Financing; Farmers; Households; Water harvesting; Agricultural and Food Policy; Agricultural Finance; Farm Management; Financial Economics; Public Economics; Resource /Energy Economics and Policy.
Ano: 2005
URL: http://purl.umn.edu/92403

Research interventions to strengthen irrigators' associations
Provedor de dados: 31
Autores: Lauraya,   Fay M.; Sala,   Antonio Lea R.; Wijayaratna,   C.M.
Tipo: Book
Palavras-chave: Irrigation management; Water distribution; Financing; Data collection; Operations; Maintenance; Performance indexes; Privatization; Farmer-agency interactions; Institution building; Farmers associations; Training; Participatory management; Leadership; Farm Management; Institutional and Behavioral Economics; Research and Development/Tech Change/Emerging Technologies; Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/113616

Lift irrigation in West Africa: challenges for sustainable local management
Provedor de dados: 31
Autores: Purkey,   David R.; Vermillion,   Douglas Lynn.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Low lift irrigation; Privatization; Social aspects; Economic aspects; Groundwater irrigation; Surface water; Environment; Policy; Environmental Economics and Policy; Farm Management.
Ano: 1995
URL: http://purl.umn.edu/113604

Institutions for irrigation management in farmer-managed systems: Examples from the hills of Nepal
Provedor de dados: 31
Autores: Martin,   Edward D.; Yoder,   Robert.
The paper examines farmer organizations and property rights which have evolved as institutions in Nepal that enable collective management of water for agricultural production.
Tipo: Report
Palavras-chave: Irrigation management; Institutions; Farmer managed irrigation systems; Nepal; Agricultural Finance; Crop Production/Industries; Farm Management; Institutional and Behavioral Economics.
Ano: 1987
URL: http://purl.umn.edu/52781

Agricultural water management in a water stressed catchment: lessons from the RIPARWIN project
Provedor de dados: 31
Autores: McCartney,   Matthew P.; Lankford,   Bruce A.; Mahoo,   Henry F.
With contributions from Julien Cour, Reuben Kadigi, Japhet Kashaigili, Magayane Machibya, Abraham Mehari, Sylvie Morardet, Kossa Rajabu, Charles Sokile, Siza Tumbo, Barbara van Koppen, Thalia Vounaki and Daniel Yawson
Tipo: Report
Palavras-chave: River basin management; Water stress; Irrigation programs; Irrigation management; Irrigation efficiency; Water use; Water allocation; Wetlands; Water rights; Water law; Economic aspects; Water rates; User charges; Water users associations; Decision support tools; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use; Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/37668

An assessment of the Small-Scale Irrigation Management Turnover Program in Indonesia
Provedor de dados: 31
Autores: Vermillion,   Douglas Lynn; Samad,   Madar; Pusposutardjo,   Suprodjo; Arif,   Sigit S.; Rochdyanto,   Saifal.
Examines the extent to which the Government of Indonesia's aspirations were realized through turnover program adopted in 1987. The impacts of management turnover on irrigation management and irrigated agriculture in selected systems in West and Central Java are analyzed. This study is part of a comparative research program to examine the impacts of irrigation management transfer in several countries using a common methodology.
Tipo: Report
Palavras-chave: Irrigation management; Privatization; Small scale systems; Irrigation systems; Water distribution; Performance; Operations; Maintenance; Productivity; Crop yield; Economic impact; Costs; Agribusiness; Agricultural Finance; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Production Economics.
Ano: 2000
URL: http://purl.umn.edu/44574

Minimizing the negative environmental and health impacts of agricultural water resources development in Sub-Saharan Africa
Provedor de dados: 31
Autores: McCartney,   Matthew P.; Boelee,   Eline; Cofie,   Olufunke O.; Mutero,   Clifford M.
This paper provides a synopsis of environmental and health impacts arising from agricultural water development in sub-Saharan Africa and recommends ways to increase the sustainability of investments in irrigation by giving greater prominence to health and environmental concerns. In many places in the region, irrigation is a key means of enhancing agricultural productivity that can reduce poverty and improve livelihoods. However, failure to adequately foresee, plan and manage the negative environmental and health impacts arising from irrigation undermines the sustainability of many schemes and can worsen poverty. To improve sustainability, environmental and health issues must be at the core of future irrigation development with much greater emphasis on the...
Tipo: Working or Discussion Paper
Palavras-chave: Water resources development; Irrigation management; Investment; Environmental effects; Public health; Risk management; Environmental Economics and Policy; Health Economics and Policy; Resource /Energy Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/91873

Institutional alternatives in African smallholder irrigation:  Lessons from international experience with irrigation management transfer
Provedor de dados: 31
Autores: Shah,   Tushaar; van Koppen,   Barbara; Merrey,   Douglas J.; de Lange,   Marna; Samad,   Madar.
This report reviews several decades of global experience in transferring management of government-run irrigation systems to farmer associations or other nongovernmental agencies in an attempt to apply the lessons of success to the African smallholder irrigation context.
Tipo: Report
Palavras-chave: Irrigation management; Small scale systems; Privatization; Farmer managed irrigation systems; Water users’ associations; Land tenure; Pumps; Agribusiness; Agricultural Finance; Community/Rural/Urban Development; Crop Production/Industries; Labor and Human Capital; Land Economics/Use.
Ano: 2002
URL: http://purl.umn.edu/44563

Locally managed irrigation systems: essential tasks and implications for assistance, management transfer and turnover programs
Provedor de dados: 31
Autores: Yoder,   Robert.
This monograph examines the construction, operation and maintenance tasks that shape the nature of locally managed irrigation systems. The objective of the book is to identify relevant experiences and lessons for staff who are responsible for working with locally managed systems in three types of programs: direct assistance to existing locally managed irrigation systems, turnover of public owned systems to local management, and transfer of partial management to farmer groups within larger systems that remain publicly controlled.
Tipo: Book
Palavras-chave: Irrigation management; Irrigation systems; Irrigation scheduling; Privatization; Farmer participation; Water management; Water rights; Water allocation; Resource management; Organizational dynamics; Conflict; Communication; Training; Farm Management; Institutional and Behavioral Economics.
Ano: 1994
URL: http://purl.umn.edu/114044

Water users association in A9 Mahilancheri Channel (Saliperi) Cauvery-Valappar Project: farmers' experience
Provedor de dados: 31
Autores: Marimuthu,   S.
Tipo: Book
Palavras-chave: Water users associations; Farmer participation; Irrigation management; Open channels; Maintenance; Water distribution; Cropping systems; Crop Production/Industries; Farm Management; Institutional and Behavioral Economics.
Ano: 1995
URL: http://purl.umn.edu/113618

Participatory rural appraisal for irrigation management research: lessons from IIMI's experience
Provedor de dados: 31
Autores: Gosselink,   Paul; Strosser,   Pierre.
The increasing international awareness about the strengths of participatory approaches and methods for research and development has led international development banks, NGOs, donors and research and training institutes to adopt Participatory Rural Appraisal (PRA) and other participatory approaches to implement new projects and programs. At IIMI, PRA approaches and methods have also been incorporated in a number of research activities. The present Working Paper explores the opportunities of PRA in irrigation management research through an analysis of selected case studies in which IIMI attempted to practice the PRA approach.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Participatory management; Participatory rural appraisal; Research methods; Farmer managed irrigation systems; Watersheds; Performance indexes; Water users; Case studies; Farm Management; Research Methods/ Statistical Methods.
Ano: 1995
URL: http://purl.umn.edu/113606

Irrigation decision-making processes and conditions: a case study of Sri Lanka's Kirindi Oya Irrigation Settlement Project
Provedor de dados: 31
Autores: Nijman,   Charles.
Detailed study of decision-making processes and managerial conditions of the Kirindi Oya Irrigation and Settlement Project in Sri Lanka, adopting a management perspective in the analysis of the performance of this major irrigation system in Sri Lanka. This paper is a companion document to "Irrigation management processes and conditions" by the same author.
Tipo: Book
Palavras-chave: Irrigation management; Decision making; Farmer-agency interactions; Accountability; Case studies; Sustainability; River basin development; Water allocation; Water requirements; Project appraisal; Indicators; Crop Production/Industries; Farm Management; Institutional and Behavioral Economics.
Ano: 1992
URL: http://purl.umn.edu/114040

Participatory action research: strengthening farmer organizations and agency-farmer relations
Provedor de dados: 31
Autores: Wijayaratna,   C.M.; Valdez,   Delia M.
Tipo: Book
Palavras-chave: Irrigation management; Irrigation systems; Agricultural development; Farmer-agency interactions; Operations; Maintenance; Performance evaluation; Institution building; Farmers associations; Training; Research methods; Privatization; Farm Management; Institutional and Behavioral Economics; Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/113711

Production and water yield of cauliflower under irrigation depths and nitrogen doses
Provedor de dados: 91
Autores: Oliveira,Reginaldo M. de; Oliveira,Rubens A. de; Vidigal,Sanzio M.; Oliveira,Ednaldo M. de; Guimarães,Lorença B.; Cecon,Paulo R.
ABSTRACT Cauliflower is a brassica produced and consumed in Brazil, whose cultivation depends on the adequate supply of water and nutrients. The objective of this study was to evaluate the effect of irrigation depths and nitrogen doses on the production components and water yield of cauliflower hybrid Barcelona CMS. The treatments consisted of five irrigation water depths (0, 75, 100, 125 and 150% of the crop evapotranspiration) combined with five nitrogen doses (0, 75, 150, 300 and 450 kg ha-1). The experiment was conducted in a completely randomized design with a split-plot arrangement. The effects of these factors were evaluated using the response surface methodology. The water yield of the crop decreases with increasing irrigation water depth;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brassica oleracea L.; Irrigation management; Nitrogen fertilization.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000800561

Evapotranspiration of sorghum from the energy balance by METRIC and STSEB
Provedor de dados: 91
Autores: Lima,João G. A.; Sánchez,Juan M.; Piqueras,José G.; Espínola Sobrinho,José; Viana,Paula C.; Alves,Aline da S.
ABSTRACT The estimate of the actual surface evapotranspiration (ET) contributes to quantifying the water needs of crops. An alternative to the use of lysimeter for an accurate estimation of water needs, which has proved to be of great value in recent years, is the use of remote sensing combined with models based on surface energy balance. There is wide variety of models that can be classified into two types: one-source models, such as the Mapping EvapoTranspiration at high Resolution with Internalized Calibration (METRIC) algorithm, or two-source models, such as the Simplified Two-Source Energy Balance (STSEB). The objective of this study was to analyze how METRIC and STSEB can be used to estimate ET, in comparison with the lysimeter data, for the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sorghum bicolor; Irrigation management; Remote sensing; Irrigation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662020000100024

Economic analysis of irrigated melon cultivated in greenhouse with and without soil plastic mulching
Provedor de dados: 91
Autores: Lima,Elvis M. de C.; Carvalho,Jacinto de A.; Viol,Miguel A.; Rezende,Fátima C.; Thebaldi,Michael S.; Diotto,Adriano V.
ABSTRACT The objective of this study was to analyze technically and economically the irrigated ‘Gália’ melon (Hybrid Nectar), cultivated in greenhouse with and without using plastic mulch covering on the soil. Simultaneously, two experiments were conducted using a completely randomized design (CRD), in which melon plants were submitted to five water availability levels, defined by 50, 75, 100, 125, and 150% of crop evapotranspiration, with four replicates. The difference between experiments were only about the soil covering with plastic mulch: with (CC) or without (SC) plastic mulch. The economically optimal irrigation depths were 208.83 and 186.88 mm, resulting in yields of 50.85 and 44.51 t ha-1 for the experiments with and without mulching,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water depth; Irrigation management; Yield.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000700471

Agronomic aspects of soybean plants subjected to deficit irrigation
Provedor de dados: 91
Autores: Nunes,Antônia C.; Bezerra,Francisco M. L.; Silva,Roberta A. e; Silva Júnior,José L. C. da; Gonçalves,Flávia B.; Santos,Geovana A.
ABSTRACT This study aimed to evaluate the behavior of soybean plants subjected to irrigation management with controlled water deficits in different phenological stages. The research was conducted in an experimental area of the Federal University of Tocantins (UFT), in Palmas-TO, Brazil. The experimental design was randomized blocks with four replicates, and treatments arranged in a split-plot scheme. The plots consisted of irrigation levels that induced plants to water deficit in the vegetative stage, reproductive stage and throughout the entire cycle, based on potential crop evapotranspiration (ETpc). The subplots corresponded to two soybean cultivars (M9144RR and TMG1288RR). The following agronomic variables were evaluated: days until flowering, days...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Irrigation management; Yield; Glycine max (L.) Merril.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000700654

Physiological characteristics and yield of ‘Pérola’ pineapple in the semi-arid region
Provedor de dados: 91
Autores: Brito,Cleiton F. B.; Santos,Marcelo R. dos; Fonseca,Varley A.; Arantes,Alessandro de M.; Almeida,Jean R. de.
ABSTRACT The objective of this study was to evaluate the physiological characteristics and yield of ‘Pérola’ pineapple subjected to irrigation with saline water in the semi-arid region of Bahia. The experiment was conducted in randomized blocks with five treatments, represented by irrigation depths: 100% ETc, using water with electrical conductivity (ECw) of 0.75 dS m-1, and 50, 75, 100 and 125% ETc, using water with ECw of 3.6 dS m-1. The experiment used a drip irrigation system and pressure-compensating emitters with a discharge of 8 L h-1. In the physiographic conditions of Guanambi-BA, pineapple has limitations of the physiological characteristics of chlorophyll fluorescence and chlorophyll index, under irrigation with both saline water and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salinity; CAM plants; Irrigation management.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017001200834

Reference evapotranspiration estimation by the Irrigameter in Southern Tocantins State, Brazil
Provedor de dados: 91
Autores: Giovanelli,Luan B.; Oliveira,Rubens A.; Oliveira-Filho,Jair C.; Baptestini,Júlio C. M.; Delazari,Fábio T.; Sediyama,Gilberto C.
ABSTRACT The choice for the most appropriate method to estimate evapotranspiration depends on the availability of meteorological data, required level of precision and cost of equipment acquisition. For this estimate, the Irrigameter is simple to operate, precise and economically viable to farmers. In addition, it collaborates in the application of the necessary water depth to crops, thus avoiding unnecessary energy consumption, environmental degradation, and increasing crop yield and improving crop quality. In this context, the objective of this research was to estimate the reference evapotranspiration using the Irrigameter, for the climatic conditions of the Southern Tocantins state, Brazil. The experimental design was completely randomized with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Irrigation management; Irrigated agriculture; Evaporator.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000500293

Irrigation and organic fertilization on the production of essential oil and flavonoid in chamomile
Provedor de dados: 91
Autores: Aleman,Catariny C.; Marques,Patricia A. A.
ABSTRACT The therapeutic efficacy of herbal medicines and pesticides has increased the need to define cultivation parameters for medicinal plants. The objective of this study was to evaluate the production of essential oil and flavonoids of chamomile under irrigation levels and organic fertilizer doses. The experiment was conducted in the experimental area of the Campus II of the University of Western São Paulo, in the city of Presidente Prudente, SP, Brazil. The experimental design was a randomized block in triple factorial (6 x 2 x 3), corresponding to irrigation depths (150, 100, 75, 50, 25 and 0% of the reference evapotranspiration (ETo)), organic fertilizers (poultry manure and cattle manure) and the fertilizer doses (0, 3 and 5 kg m-2), with four...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chamomilla recutita (L.) Rauschert; Medicinal plants; Water stress; Irrigation management; Organic production.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001201045

Performance of different methods for reference evapotranspiration estimation in Jaíba, Brazil
Provedor de dados: 91
Autores: Silva,Gustavo H. da; Dias,Santos H. B.; Ferreira,Lucas B.; Santos,Jannaylton É. O.; Cunha,Fernando F. da.
ABSTRACT FAO Penman-Monteith (FO-PM) is considered the standard method for the estimation of reference evapotranspiration (ET0) but requires various meteorological data, which are often not available. The objective of this work was to evaluate the performance of the FAO-PM method with limited meteorological data and other methods as alternatives to estimate ET0 in Jaíba-MG. The study used daily meteorological data from 2007 to 2016 of the National Institute of Meteorology’s station. Daily ET0 values were randomized, and 70% of these were used to determine the calibration parameters of the ET0 for the equations of each method under study. The remaining data were used to test the calibration against the standard method. Performance evaluation was based on...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Missing data; Modeling; Irrigation management; FAO-Penman-Monteith.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000200083

Yield components and water use efficiency in coriander under irrigation and nitrogen fertilization
Provedor de dados: 91
Autores: Angeli,Karoline P.; Delazari,Fábio T.; Nick,Carlos; Ferreria,Mariane G.; Silva,Derly J. H. da.
ABSTRACT Among the determining factors of yield, nitrogen (N) fertilization and the correct supply of water play an important role in the quality and yield aspects of coriander. Therefore, the aim of this study was to evaluate the yield components and the water use efficiency (WUE) in coriander subjected to different depths and N doses. A completely randomized design in split plot was used. Water depths were applied in the plots at the rates of 25, 50, 75, 100 and 125% of the Required Real Irrigation (RRI). N doses were distributed within the subplots at the following proportions: 50, 100 and 150% of the recommendation for the crop (70 kg ha-1). The N dose of 94 kg ha-1 and irrigation depth of 115% of RRI promoted the greatest yield (29.0 t ha-1) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coriandrum sativum L.; Irrigation management; Water saving; Nitrogen fertilization.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000500415

Performance of methods for estimation of table beet water requirement in Alagoas
Provedor de dados: 91
Autores: Santos,Daniella P. dos; Santos,Célia S. dos; Silva,Leiliane M. da; Santos,Márcio A. L. dos; Santos,Cícero G. dos.
ABSTRACT Optimization of water use in agriculture is fundamental, particularly in regions where water scarcity is intense, requiring the adoption of technologies that promote increased irrigation efficiency. The objective of this study was to evaluate evapotranspiration models and to estimate the crop coefficients of beet grown in a drainage lysimeter in the Agreste region of Alagoas. The experiment was conducted at the Campus of the Federal University of Alagoas - UFAL, in the municipality of Arapiraca, AL, between March and April 2014. Crop evapotranspiration (ETc) was estimated in drainage lysimeters and reference evapotranspiration (ETo) by Penman-Monteith-FAO 56 and Hargreaves-Samani methods. The Hargreaves-Samani method presented a good performance...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lysimetry; Irrigation management; Beta vulgaris L.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000300189

Irrigation depths and yield response factor in zucchini cultivation
Provedor de dados: 91
Autores: Azevedo,Benito M. de; Fernandes,Carlos N. V.; Vasconcelos,Denise V.; Garcia,Amparo C.; Figueredo Júnior,Luis G. M. de; Viana,Thales V. de A.
ABSTRACT The objective of this study was to evaluate the effect of different irrigation depths on productive performance and yield response of zucchini (Cucurbita pepo L.). A field trial was carried out in the experimental area of ​​the Meteorological Station of the Federal University of Ceará, CE, Brazil. The experimental design was randomized blocks, with six treatments and four replicates. The treatments adopted were: 30, 60, 90, 120, 150 and 180% of the reference evapotranspiration (ETo), estimated by Penman-Monteith (EToPM) and applied by drip irrigation. Fruit weight, number of fruits, fruit length, fruit diameter, pulp thickness, soluble solids and yield were analyzed, as well as water use efficiency (WUE). The methodology proposed by FAO Bulletin...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucurbita pepo L.; Irrigation management; Reference evapotranspiration.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000600401

Sensor placement for soil water monitoring in lemon irrigated by micro sprinkler
Provedor de dados: 91
Autores: Coelho,Eugênio F.; Santos,Delfran B. dos; Azevedo,Carlos A. V. de.
This research had as its objective the investigation of an alternative strategy for soil sensor placement to be used in citrus orchards irrigated by micro sprinkler. An experiment was carried out in a Tahiti lemon orchard under three irrigation intervals of 1, 2 and 3 days. Soil water potential, soil water content distribution and root water extraction were monitored by a time-domain-reflectometry (TDR) in several positions in soil profiles radial to the trees. Root length and root length density were determined from digital root images at the same positions in the soil profiles where water content was monitored. Results showed the importance of considering root water extraction in the definition of soil water sensor placement. The profile regions for soil...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tensiometer; Soil water content; Soil water potential; Irrigation management.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662007000100006

Fruit yield and root system distribution of 'Tommy Atkins' mango under different irrigation regimes
Provedor de dados: 91
Autores: Santos,Marcelo R. dos; Martinez,Mauro A.; Donato,Sérgio L. R.; Coelho,Eugênio F.
This study aimed to evaluate the fruit yield and the distribution of 'Tommy Atkins' mango root system under different irrigation regimes in the semiarid region of Bahia. The experimental design was completely randomized with five treatments and three replicates: 1 - Irrigation supplying 100% of ETc in phases I, II and III; 2 - Regulated deficit irrigation (RDI) supplying 50% of ETc in phase I (beginning of flowering to early fruit growth); 3 - RDI supplying 50% ETc in phase II (start of expansion until the beginning of physiological maturity); 4 - RDI supplying 50% ETc in phase III (physiological mature fruits); 5 - No irrigation during all three phases. The regulated deficit irrigation supplying 50% of the ETc during phase I and II provided larger root...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Regulated deficit irrigation; Effective rooting depth; Irrigation management.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662014000400002

Evapotranspiration and crop coefficients of Moringa oleifera under semi-arid conditions in Pernambuco
Provedor de dados: 91
Autores: Santos,Célia S. dos; Montenegro,Abelardo A. de A.; Santos,Márcio A. L. dos; Pedrosa,Elvira M. R.
ABSTRACT Efficient water use in agriculture is fundamental, especially in semi-arid regions where water scarcity is intense. The aim of this study was to estimate water requirements and crop coefficients in the different phenological stages of Moringa oleifera. The experiment was carried out from February to April 2015 at the Experimental Unit for Reuse and Hydrological Management, located in Mutuca, PE (7º 15’ 18’’ S, 35º 52’’ 40’’ W, 550 m). A lysimeter was used to estimate crop evapotranspiration. Reference evapotranspiration (ETo) was estimated by indirect methods. In the lysimeter, soil salinity and leaf water potential of the crop were monitored. The direct and indirect methods presented an excellent performance compared with the standard...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Irrigation management; Water requirement; Perennial oilseed crop.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017001200840

Growth, production and water and nitrogen use efficiency of maize under water depths and nitrogen fertilization
Provedor de dados: 91
Autores: Campelo,David H.; Teixeira,Adunias dos S.; Moreira,Luis C. J.; Lacerda,Claudivan F. de.
ABSTRACT The objective of this study was to evaluate the growth, the production components and the water (WUE) and nitrogen use efficiency (NUE) in maize (Zea mays L.), as function of water depths and nitrogen doses. The experimental design was randomized blocks in a split-plot scheme with four repetitions. The irrigation treatments applied in the plots were composed of four water depths: 80, 90, 100 and 110% of the water requirement, based on the soil field capacity, while the N doses, distributed in the subplots, were 0, 60, 120 and 180 kg ha-1. Increases in water depths and in N doses promote linear increases in plant height and leaf area index. For cycle I (2015) the maximum yield (16,778.3 kg ha-1) was reached with the irrigation depth of 538.1 mm and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays L.; Irrigation management; Mineral fertilization.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019001000747

Stalk yield of sugarcane cultivars under different water regimes by subsurface drip irrigation
Provedor de dados: 91
Autores: Andrade Junior,Aderson S. de; Bastos,Edson A.; Ribeiro,Valdenir Q.; Athayde Sobrinho,Candido; Silva,Paulo H. S. da.
ABSTRACT This study aimed to evaluate the stalk yield of ten sugarcane cultivars (RB962962, RB931011, RB931530, RB98710, RB92579, RB867515, RB863129, SP791011, RB72545 and VAT90212) subjected to water deficit, full irrigation and water surplus by subsurface drip irrigation, during three cropping seasons (2011-2014). The experiment was conducted at the Experimental Field of Embrapa Meio-Norte, Teresina, Piauí State, Brazil, in dystrophic Red Yellow Argisol. The cultivars RB962962 (162.3 Mg ha-1) and RB867515 (158.5 Mg ha-1) have better stalk yield compared with other cultivars in all water regimes and cropping seasons.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saccharum officinarum L.; Irrigation management; Drip irrigation; Cultivar selection.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000300169

Evapotranspiration and water sensitivity of Amazonian yellow ipe seedlings under different shading conditions
Provedor de dados: 91
Autores: Keffer,Josiane F.; Silva,Cátia C. da; Souza,Adilson P. de; Silva,Andréa C. da; Bouvié,Luana; Dias,Thaíse K. R.
ABSTRACT The scarcity of information on the agroclimatic and ecophysiological requirements of forest species, especially in the initial phase, limits the production of quality seedlings, the planning and optimization of nurseries. The potential evapotranspiration, crop coefficients (kc) and water sensitivity coefficients (ky) of Amazonian yellow ipe seedlings were determined under different shading conditions and levels of water replacement to the substrate, in the dry period (July to October 2016), in the Cerrado-Amazon Rainforest transition region of the Mato Grosso state, Brazil. The experiment evaluated the full sun and black polyester nets with 35, 50, 65 and 80% shading, and the levels of water replacement to the substrate of 25, 50, 75 and 100% ETc...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Handroanthus serratifolius; Crop coefficients; Water deficit; Irrigation management.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019001000733

Carrot yield and water-use efficiency under different mulching, organic fertilization and irrigation levels
Provedor de dados: 91
Autores: Carvalho,Daniel F. de; Gomes,Daniela P.; Oliveira Neto,Dionizio H. de; Guerra,José G. M.; Rouws,Janaína R. C.; Oliveira,Fábio L. de.
ABSTRACT This study was carried out to evaluate the contributions to the optimization of water use in a carrot crop under different forms of mulch using Gliricidia sepium, fertilization with castor bean cakes and irrigation water depths. The experiment was conducted in Seropédica, RJ, Brazil (22º 46’ S and 43º 41’ W), from June to September 2010. The experiment was conducted using a split-split-plot scheme (5 x 3 x 2), with four replicates. The five plots had irrigation depths corresponding to 0, 43, 72, 100 and 120% of crop evapotranspiration (ETc); the three subplots contained the different forms of mulch (whole leaves (WL) and chopped leaves and branches (CLB)) and the absence of mulch (AM); and the two sub-subplots contained either the presence (PF) or...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Irrigation management; Gliricidia sepium; Castor bean cake; Daucus carota L.; Organic agriculture.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000700445

Yield and water use efficiency of cowpea under water deficit
Provedor de dados: 91
Autores: Souza,Paulo J. O. P.; Ramos,Thaynara F.; Fiel,Lucilene de C. S.; Farias,Vivian D. da S.; Sousa,Denis de P.; Nunes,Hildo G. G. C.
ABSTRACT The state of Pará is the main regional producer of cowpea, but its yield is still low compared to other states of the Northern region such as Amazonas and Tocantins, due to the management adopted and the water regime during the cycle, since its cultivation is conducted on a rainfed basis. The objective of this study was to evaluate how water deficit imposed during reproductive stage interferes in the yield of cowpea and in its water use efficiency under the climatic conditions of Castanhal, Pará, Brazil, for agricultural planning purposes. The experiment was carried out in Castanhal, northeastern region of the Pará state during the dry season of 2014, 2015 and 2016. The experimental design was randomized blocks with six blocks and four treatments,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water deficit; Water demand; Irrigation management.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000200119

Water requirements and crop coefficients of tropical forest seedlings in different shading conditions
Provedor de dados: 91
Autores: Monteiro,Emanoeli B.; Silva,Andréa C. da; Souza,Adilson P.; Tanaka,Adriana A.; Ferneda,Brena G.; Martim,Charles C.
ABSTRACT The objective was to determine the crop evapotranspiration (ETc) and crop coefficients (Kc) of tropical forest seedlings over a 135-day cycle, in the climatic conditions of the Cerrado-Amazon transitional region (11º 51’ 08 “S; 55º 30’ 56” W; altitude of 371 m). Five native species (Tabebuia impetiginosa, Tabebuia roseoalba, Handroanthus chrysotrichus, Parkia pendula and Parkia platycephala) and one exotic species (Adenanthera pavonina) were evaluated in seven shading conditions: 35, 50 and 80% black nets (Polyolefin); green Frontinet®, red ChromatiNet® and blue ChromatiNet® of 50% shading; and full sun. Reference evapotranspiration (ETo) was obtained by the Penman-Monteith FAO-56 method and the crop evapotranspiration of the seedlings (ETc) was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Evapotranspiration; Irrigation management; Leaf area; Solar radiation.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000800709

Evapotranspiration and water response function of squash cv. ‘Italiana’ under different cultivation conditions
Provedor de dados: 91
Autores: Martim,Charles C.; Silva,Suzana G. da; Ferneda,Brena G.; Souza,Adilson P. de; Silva,Andréa C. da; Pizzatto,Mariana.
ABSTRACT Aiming to support projects and managements of irrigation for vegetables in the Mid-North region of Mato Grosso state, Brazil, this paper determined crop evapotranspiration (ETc), crop coefficients (Kc) and water response function of summer squash (Curcubita pepo) cv. ‘Italiana’ under different cultivation conditions. The plantations were conducted in the dry season of the region (July to October 2016), using 2.5 kg m-2 of millet straw (grass) and crotalaria straw (legume) and bare soil. ETc was obtained by soil water balance through tensiometry, whereas Kc values were given by the ratio between ETc and the reference evapotranspiration (ETo) obtained by the FAO-56 Penman-Monteith method. For the water response function, the rates of 40, 60, 80, 100...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crop coefficients; Mulching; Irrigation management.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000900640

Estimation of the crop coefficient (kc) for bell pepper under greenhouse conditions
Provedor de dados: 91
Autores: Lorenzoni,Marcelo Z.; Rezende,Roberto; Santos,Fernando A. S.; Souza,Álvaro H. C. de; Seron,Cássio de C.; Nascimento,Jean M. R. do.
ABSTRACT This study aimed to determine the crop coefficient (kc) and respective water consumption of the Magali R. bell pepper hybrid cultivated in a protected environment from May to September 2015. Reference evapotranspiration was estimated using the Modified Penman-Monteith method and data were collected from an automatic weather station installed inside the greenhouse at the Universidade Estadual de Maringá, in the municipality of Maringá, PR, Brazil (23° 25’ 57’’ S, 51° 57’ 8’’ W, and altitude of 542 m). Evapotranspiration was measured using constant water table lysimeters. The total water consumption of the bell pepper crop was 282 mm and the average consumption was 2.35 mm d-1. The maximum evapotranspiration was 5.37 mm d-1. Crop coefficient values...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum annuum L.; Evapotranspiration; Irrigation management.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019001000741

Tomato yield as a function of water depths and irrigation suspension periods
Provedor de dados: 91
Autores: Silva,Cícero J. da; Frizzone,José A.; Silva,César A. da; Golynski,Adelmo; Silva,Luiz F. M. da; Megguer,Clarice A.
ABSTRACT Irrigation management is essential for tomato fruits yield and quality. Therefore, the aim of this study was to evaluate the yield of tomatoes for industrial processing, ‘BRS Sena’ hybrid, subjected to water depths and irrigation suspension periods before harvest, irrigated by subsurface drip irrigation, in Goiás, Brazil (17º 49’ 19.5” S and 49º 12’ 11.3” W), in 2015 and 2016. The experiments were conducted under a randomized complete block design, with four replications, in split plots. Five irrigation levels (50, 75, 100, 125 and 150% of crop evapotranspiration) were evaluated in the plots and five irrigation suspension periods (0, 7, 14, 21 and 28 days before harvest) were evaluated in the subplots. At 125 days after transplanting the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum lycopersicon L.; Subsurface drip irrigation; Industrial tomato; Irrigation management; Crop evapotranspiration.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000800591

Soil water content and wood ash fertilization on the cultivation of gladiolus
Provedor de dados: 91
Autores: Pereira,Marcel T. J.; Silva,Tonny J. A. da; Bonfim-Silva,Edna M.
ABSTRACT Irrigation management, associated with the management of fertilization through the use of waste from plant material burning, has proven to be a sustainable strategy to increase the production of ornamental plants in greenhouses. The objective of this study was to evaluate the development of gladiolus subjected to soil water contents and wood ash fertilization in a Cerrado Oxisol. The experiment was conducted under controlled conditions from April to September 2014, in a randomized block design, arranged in a 5 x 5 factorial, with four replicates. The treatments consisted of five water contents (7, 14, 21, 28, and 35%) and five doses of wood ash (0, 8, 16, 24 and 32 g dm-3). Irrigation management was carried out using the portable probe Diviner...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gladiolus x grandiflorus L.; Irrigation management; Ornamental plants; Solid waste in agriculture.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000400350

Nitrate and potassium movement in a sandy loam soil cultivated with fertigated grapevine (Vitis vinifera /L.) in the Brazilian semiarid
Provedor de dados: 94
Autores: Silva,Alexsandro Oliveira da; Bassoi,Luis Henrique; Silva,Davi José.
Abstract  Fertigation can increase the efficiency of fertilizer application and facilitate the nutritional management of a crop. Thus, nitrate and potassium movements in a sandy loam soil were evaluated as function of fertilizer doses during three growing seasons of the grapevine cv. Syrah grafted on Paulsen 1103 rootstock (June to October 2013, February to June 2014, and August to November 2014) in Petrolina, state of Pernambuco, Brazil. Five doses of N (0, 15, 30, 60 and 120 kg ha-1) and five doses of K2O (0, 15, 30, 60 and 120 kg ha-1) were combined in a fractional 52 factorial design, totaling 13 combinations, in a randomized blocks experiment with four replications. The concentrations of nitrate and potassium in the soil solution were determined....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Irrigation management; Porous cup extractor; Soil solution.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000503003

Quality of ‘Tainung 1’ papaya produced by partial root zone drying
Provedor de dados: 94
Autores: Castricini,Ariane; Oliveira,Polyanna Mara de; Martineli,Maristella; Coelho,Eugênio Ferreira; Rodrigues,Maria Geralda Vilela.
Resumo  A significant portion of papaya production in the state of Minas Gerais originates from irrigated crops, and irrigation management using the partial root zone drying technique (PRD) is a fundamental alternative to reduce water waste. This study aimed to evaluate the quality of ‘Tainung 1’ papaya produced under PRD in semi-arid conditions of northern state of Minas Gerais. PRD treatments were composed of reduction of the calculated irrigation water (CIW) by 50%, applied on one side of the irrigation line, with alternation of 7, 14 and 21 days or without alternation and full irrigation, applying 100 % CIW in both lateral plant rows. Each experimental plot consisted of ten plants, and from six plants, fruits were harvested for evaluations at harvest...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carica papaya L; Irrigation management; Postharvest.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000506001

Water potential in peach branches as a function of soil water storage and evaporative demand of the atmosphere
Provedor de dados: 94
Autores: Monteiro,Alex Becker; Reisser Júnior,Carlos; Romano,Luciano Recart; Timm,Luís Carlos; Toebe,Marcos.
Abstract  The use of water potential indicators in the plant has been adopted in irrigation management, in recent years, since it is accepted that the plant is the best indicator of its own water status. The objective of this study was to verify the relationship between water potential in peach tree branches and the evaporative demand of the atmosphere and the water availability in two textural classes of an Aquertic Hapludalf soil, aiming to adopt irrigation management strategies based on the water potential in the plant. Research was carried out in a commercial peach orchard, cv. Esmeralda, in the municipality of Morro Redondo-Rio Grande do Sul state, Brazil. Four peach tree rows were evaluated, being two irrigated and two non irrigated. The irrigation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Prunus persica (L.); Water status; Evapotranspiration; Soil water content; Irrigation management.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000100702

Irrigation of radish cultivars in the region of Viçosa, Minas Gerais, Brazil
Provedor de dados: 124
Autores: Correia,Caio César Silva Alvarenga; Cunha,Fernando França da; Mantovani,Everardo Chartuni; Silva,Derly Jose Henriques da; Dias,Santos Henrique Brant.
ABSTRACT The region of Viçosa in Brazil stands out for vegetable production. For success in this activity, the correct choice of cultivar with the correctly applied irrigation are necessary. As such, the aim of this study was to evaluate the agronomic performance of radish cultivars submitted to different irrigation depths. The radish crop was grown in a protected environment over three cycles, for periods of 38 to 40 days. The experimental design was of randomised complete blocks in split plots with five replications, comprising five irrigation depths (50, 75, 100, 125 and 150% of crop evapotranspiration-ETc) in the plots, with three radish cultivars in the subplots. (Hybrid no 25 - Sakata, Crunchy Royale - Sakata and Vip Crimson - Feltrin). A drip...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Protected cultivation; Horticulture; Irrigation management; Raphanus sativus.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000100411

Agronomic performance of the cowpea under different irrigation depths and row spacing
Provedor de dados: 124
Autores: Costa Junior,Manoel de Jesus Nunes da; Bastos,Edson Alves; Cardoso,Milton José; Andrade Júnior,Aderson Soares de.
ABSTRACT The cowpea is of great socioeconomic importance in the North, Northeast and Mid-West of Brazil, and its irrigated farming has recently been on the increase in these regions. The aim of this study was to evaluate the agronomic performance of the cowpea 'BRS Tumucumaque' for different row spacings and irrigation depths, under the conditions of soil and climate of Teresina, in the State of Piauí. The experiment was carried out from August to November 2014, in a Yellow Argisol at the Experimental Area of Embrapa Meio-Norte in Teresina. The experimental design was of randomised blocks in subdivided lots, with four replications. The treatments consisted of five irrigation depths (40% ETo, 70% ETo, 100% ETo, 130% ETo and 160% ETo) in the main plot, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vigna unguiculata; Grain yield; Irrigation management; Plant density; BRS Tumucumaque.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500774

Efficiency of water application of irrigation systems based on microsprinkling in banana plantations
Provedor de dados: 63
Autores: Silva,Alisson Jadavi Pereira da; Coelho,Eugênio Ferreira; Miranda,Jarbas Honório de.
Further food production may be limited by the reduced availability of water resources. Since irrigated agriculture is the productive sector that presents a higher demand of water, this sector has been under intense pressure in order to ensure food production with improved efficiency of water use. This study aimed to use the Time Domain Reflectometry (TDR) technique to measure percolation losses and to determine water application efficiency of banana (Musa spp.) trees using microsprinkler irrigation systems. Three systems were studied: (i) one 32 L h-1 microsprinkler for four plants; (ii) one 60 L h-1 microsprinkler for four plants; and (iii) one 60 L h-1 microsprinkler for two plants. Systems that replace water to the soil with the lowest variation of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: TDR; Musa spp.; Root distribution; Irrigation management.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000300001

Yield, quality and drought sensitivity of tomato to water deficit during different growth stages
Provedor de dados: 63
Autores: Cui,Jintao; Shao,Guangcheng; Lu,Jia; Keabetswe,Larona; Hoogenboom,Gerrit.
ABSTRACT In areas where the supply of water for irrigation is limited, tomato production is often subject to drought stress. In order to investigate the drought sensitivity of tomato (Lycopersicon esculentum Mill.) yield and quality during different growth stages, field and pot experiments were conducted in a high tunnel in southern China during the 2013 and 2016 growing seasons. The experiments consisted of four treatments. Crops were drip-irrigated to 100 % of field capacity at all growth stages divided into treatment T1 (control) and the treatment group T2, T3 and T4 receiving half the amount of irrigation as T1 when the soil water content reached 70 % of field capacity, the vegetative phase (stage I) T2, the flowering and fruit development phase (stage...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Deficit irrigation; Sensitivity index; Irrigation management; High tunnel.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000200601

Water extraction and implications on soil moisture sensor placement in the root zone of banana
Provedor de dados: 63
Autores: Silva,Alisson Jadavi Pereira da; Coelho,Eugênio Ferreira; Coelho Filho,Maurício Antônio; Souza,José Leonaldo de.
ABSTRACT: The knowledge on spatial and temporal variations of soil water storage in the root zone of crops is essential to guide the studies to determine soil water balance, verify the effective zone of water extraction in the soil and indicate the correct region for the management of water, fertilizers and pesticides. The objectives of this study were: (i) to indicate the zones of highest root activity for banana in different development stages; (ii) to determine, inside the zone of highest root activity, the adequate position for the installation of soil moisture sensors. A 5.0 m3 drainage lysimeter was installed in the center of an experimental area of 320 m2. Water extraction was quantified inside the lysimeter using a 72 TDR probe. The concept of time...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil water storage; Irrigation management; Water balance.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000200095

Growth and yield of papaya under irrigation
Provedor de dados: 63
Autores: Almeida,Frederico Terra de; Bernardo,Salassier; Sousa,Elias Fernandes de; Marin,Sérgio Lúcio David; Grippa,Sidney.
Thermal units or degree day systems can both be used to quantify relationships between plants and air temperature. The Northern Fluminense region holds no tradition for irrigated papaya (Carica papaya L.) cropping and, because of the need for irrigation, it is important knowing its growth and development characteristics under these conditions. This study aimed to determine the relationship between growth rate of papaya plants and degree days, and its effect on crop productivity, under different irrigation levels. An experiment was set up with the cultivar "Improved Sunrise Soil 72/12", in a randomized blocks design, with seven irrigation water depths and three repetitions; crop growth and yield parameters were evaluated. There were significant correlations...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Irrigation management; Development; Papaya; Productivity.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000300001

Morpho-physiology, yield, and water-use efficiency ofOpuntia ficus-indica irrigated with saline water
Provedor de dados: 1
Autores: Fonseca, Varley Andrade; Santos, Marcelo Rocha dos; Silva, João Abel da; Donato, Sérgio Luiz Rodrigues; Santos Rodrigues, Carlindo; Brito, Cleiton Fernando Barbosa.
Forage cactus pear is considered a xerophilic plant, so it is adapted to harsh semiarid conditions and is a forage resource of significant importance for animal production in regions that are subject to food shortage and long dry periods. We aimed to evaluate the morphometric and physiologic characteristics and water-use efficiency of ‘Gigante’ forage cactus pear under different settings of irrigation depth and irrigation intervals with saline water. The treatments included seven conditions of water application: rainfed, 5 liters of water per linear meter every 15 days; 7% reference evapotranspiration (ETo) with a 15-day irrigation interval; 15% ETo with a 7-day irrigation interval; 33% ETo with a 3-day irrigation interval; 50% ETo with a 2-day irrigation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Semiarid; Irrigation management; Salinity.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42631

Morpho-physiology, yield, and water-use efficiency ofOpuntia ficus-indica irrigated with saline water
Provedor de dados: 1
Autores: Fonseca, Varley Andrade; Santos, Marcelo Rocha dos; Silva, João Abel da; Donato, Sérgio Luiz Rodrigues; Santos Rodrigues, Carlindo; Brito, Cleiton Fernando Barbosa.
Forage cactus pear is considered a xerophilic plant, so it is adapted to harsh semiarid conditions and is a forage resource of significant importance for animal production in regions that are subject to food shortage and long dry periods. We aimed to evaluate the morphometric and physiologic characteristics and water-use efficiency of ‘Gigante’ forage cactus pear under different settings of irrigation depth and irrigation intervals with saline water. The treatments included seven conditions of water application: rainfed, 5 liters of water per linear meter every 15 days; 7% reference evapotranspiration (ETo) with a 15-day irrigation interval; 15% ETo with a 7-day irrigation interval; 33% ETo with a 3-day irrigation interval; 50% ETo with a 2-day irrigation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Semiarid; Irrigation management; Salinity.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42631

Influência da decomposição de diferentes resíduos vegetais submetidos a lâminas de irrigação no comportamento da vegetação espontânea - DOI: 10.4025/actasciagron.v32i2.3732
Provedor de dados: 1
Autores: Souza, Adilson Pacheco de; UNESP - Faculdade de Ciências Agronômicas; Lima, Márcio Emanoel de; Programa de Pós-Graduação em Fitotecnia, UFRRJ, Seropédica; Carvalho, Daniel Fonseca de; UFRRJ, Seropédica; Guerra, José Guilherme Marinho; Embrapa Agrobiologia, Seropédica; Andrade, Irineu Pedro de Sousa; UFRRJ, Seropédica; Rocha, Hermes Soares da; UFRRJ, Seropédica.
Este trabalho objetivou avaliar o comportamento da vegetação espontânea com relação às taxas de decomposição de diferentes coberturas do solo submetidas à variação de lâminas de irrigação. Foram utilizados resíduos vegetais de Gliricídia (Gliricidia sepium), feijão-guandu (Cajanus cajan), capim Cameroon (Pennisetum purpureum) e Bambu (Bambusa vulgaris ‘vitata’). As lâminas irrigadas foram caracterizadas como T5, T4, T3, T2 e T1, correspondendo a aproximadamente 117, 100, 72, 59 e 38% da ETo. A decomposição dos resíduos vegetais foi analisada por meio de covered litter, em 2, 4, 7, 15, 30, 60, 90, 120 e 150 dias após instalação (DAI). Foram realizadas amostragens da vegetação espontânea aos 26, 64, 92, 124 e 152 DAI, em uma área de 0,0625 m²
Palavras-chave: 5.01.03.00-8 Palhada; Manejo da irrigação; Manejo de plantas daninhas Fitotecnia Straw; Irrigation management; Weed management.
Ano: 2010
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/3732

Morpho-physiological characteristics by sweet potato cultivars as function of irrigation depth
Provedor de dados: 42
Autores: DELAZARI,FÁBIO T.; ASSIS,IGOR R.; CABRERA,DIEGO F.V.; FERREIRA,MARIANE G.; DIAS,LUIZ E.; RUEDA,ANGELICA; ZANUNCIO,JOSÉ C.; SILVA,DERLY J.H.
Abstract The sweet potato is an alternative energy source, but its sustainability depends on efficient water use. The objective of this study was to evaluate sweet potato morpho-physiological characteristics, and water use efficiency (WUE). Irrigation depths of 50, 75, 100, and 125% of crop evapotranspiration (ETc) were applied. The morpho-physiological indicators, WUE, leaf area index (LAI), leaf water potential, leaf temperature, and leaf chlorophyll index (ICF), were evaluated. The WUE of the sweet potato cultivars increased until the 75% water depth of the ETc. The LAI of these cultivars increased with irrigation depth, with higher values at 100% of the ETc. The leaf water potential of the two sweet potato cultivars was lowest with the lower irrigation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ipomoea batatas; Irrigation management; Leaf temperature; Water stress; Water use efficiency.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703541

Variation in the sugar yield in response to drying-off of sugarcane before harvest and the occurrence of low air temperatures
Provedor de dados: 53
Autores: Araújo,Renato; Alves Junior,José; Casaroli,Derblai; Evangelista,Adão Wagner Pêgo.
ABSTRACT The need to irrigate sugarcane in the Brazilian Savanna is due to the lack of rain from April to September. For efficient sugar accumulation, the crop needs water stress or heat stress at the maturation stage. However, when the water deficit is intense at this stage, it occurs the reduction in crop production. The objective of this study was: (i) to assess the quality of the raw material of sugarcane in different drying-off seasons before harvest; (ii) to evaluate the influence of heat stress on the culture. The experiment was conducted in Santo Antônio de Goiás (GO), Brazil, in Oxisol, with CTC4 variety in cane-plant cycle. A randomized block design in a split-plot array in time was used. The treatments of the plots were five drying-off times...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water stress; Irrigation management; Brazilian savanna; Thermal stress.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000100118

Soil water storage variability in a three-dimensional analysis in the root zone of irrigated melon
Provedor de dados: 53
Autores: Nascimento,Francisco Airdesson Lima do; Silva,Alisson Jadavi Pereira da; Campos,Allan Radax Freitas.
ABSTRACT A detailed knowledge of the soil water storage variability in the root zone can promote recommendations regarding the ideal positioning of sensors, as well as make the calculation of soil water balance more precise and accurate. This study aimed to assess soil water storage variability in the melon root zone and indicate – based on spatial variation of soil water storage – the regions of highest rootactivity of the melon crop in different development stages. Soil waterstorage was measured using time domain reflectometry (TDR) in 40 monitoring points. The data were daily collected in two periods: (i) immediately before irrigation and (ii) 30 min after irrigation. The soil water storage variation in the melon root zone occurs with greater intensity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil water balance; Drip irrigation; Irrigation management.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052019000400587

Irrigation and fertigation frequencies with nitrogen in the watermelon culture
Provedor de dados: 53
Autores: Fernandes,Carlos Newdmar Vieira; Azevedo,Benito Moreira de; Nascimento Neto,Joaquim Raimundo; Viana,Thales Vinícius de Araújo; Sousa,Geocleber Gomes de.
This study evaluates the influence of different irrigation frequencies and different nitrogen fertigation frequencies on the growth performance of the watermelon (Citrullus lanatus) culture. Two experiments were conducted at the Paraguay farm in the Cruz municipality, Ceará, Brazil. They was randomized blocks design with six treatments and four replications. The irrigation frequency experiment consisted of the application of different irrigation frequencies. The treatments were: DM - daily irrigation in the morning with 100% daily dosage; DT - daily irrigation in the afternoon, with 100% daily dosage; DMT - twice daily irrigation, with 50% daily dosage in the morning and 50% daily dosage in the afternoon; 2D - irrigation every two days; 3D - irrigation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Citrullus lanatus; Irrigation management; Chemigation; Nitrogen fertilizing.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052014000200003

Photosynthesis and cell respiration modulated by water deficit in grapevine (Vitis vinifera L.) cv. Cabernet Sauvignon
Provedor de dados: 61
Autores: Martim,Sílvia A.; Santos,Mirella P.; Peçanha,Anderson L.; Pommer,Celso; Campostrini,Eliemar; Viana,Alexandre P.; Façanha,Arnoldo R.; Bressan-Smith,Ricardo.
Winegrape productivity and quality has been related to the regulated deficit irrigation, with important implications for the plant bioenergetics. When water deficit is imposed to grapevine plants, alterations in overall photosynthesis and cell respiration are observed. The aim of this study was to assess the modulations promoted by water stress on photosynthesis and respiration in leaves of the cv. Cabernet Sauvignon (cv. CS) for better understanding the physiological responses related to its drought tolerance and quality improvement under water deficit. For this purpose, measurements of photosynthetic efficiency, leaf water potential, gas exchange and O2 consumption were carried out. Leaf water potential, photosynthesis, stomatal conductance,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vitis vinifera; Drought tolerance; Irrigation management; Respiratory chain regulation; Plant bioenergetics.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202009000200002

Yield and ion content in maize irrigated with saline water in a continuous or alternating system
Provedor de dados: 65
Autores: Barbosa,Felipe de Sousa; Lacerda,Claudivan Feitosa de; Gheyi,Hans Raj; Farias,Gabriel Castro; Silva Júnior,Ricardo José da Costa; Lage,Yara Araújo; Hernandez,Fernando Felipe Ferreyra.
Irrigation with water containing salt in excess can affect crop development. However, management strategies can be used in order to reduce the impacts of salinity, providing increased efficiency in the use of good quality water. The objective of this research was to study the effects of use of high salinity water for irrigation, in continuous or cyclic manner, on vegetative growth, yield, and accumulation of ions in maize plants. Two experiments were conducted during the months from October to January of the years 2008/2009 and 2009/2010, in the same area, adopting a completely randomized block design with four replications. Irrigation was performed with three types of water with electrical conductivities (ECw) of 0.8 (A1), 2.25 (A2) and 4.5 (A3) dS m-1,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays L.; Salt tolerance; Irrigation management.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012001000003

Performance of arugula genotypes under irrigation depths on Brazilian Cerrado
Provedor de dados: 64
Autores: Cunha,Fernando França da; Souza,Ivan Pereira de; Campos,Washington de Oliveira; Andrade Júnior,Valter Carvalho de; Magalhães,Thiago Alves; Aleman,Catariny Cabral.
ABSTRACT Due to the water balance in the Brazilian Cerrado, it is not necessary to cultivate arugula in a rainfed system. Together with the lack of research on with this crop, it is necessary to study the response of genotypes to irrigation in this biome. Thus, the objective of this study was to determine the optimal irrigation depth and to identify the best arugula genotypes. Three arugula genotypes were field-tested during two cycles under the effect of four irrigation depths based on crop evapotranspiration. The parameters evaluated were root depth, SPAD index, number of plants and leaves per plant, plant diameter, fresh shoot mass and water use efficiency. The arugula presented the same demand for irrigation in the two cycles, and the genotypes and/or...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eruca sativa L.; Irrigation management; Horticultural.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000300271

Wet bulb and Conilon coffee root distribution under drip irrigation
Provedor de dados: 64
Autores: Souza,Joabe Martins de; Reis,Edvaldo Fialho dos; Bonomo,Robson; Garcia,Giovanni de Oliveira.
ABSTRACT Knowledge of the wet bulb and the root system of the Conilon coffee plant is highly important for the correct management of irrigation. Therefore, the aim of this work was to characterize the wet bulb and Conilon coffee root distribution under drip irrigation. The experiment was conducted in the city of São Mateus, ES, Brazil with five replications of a completely randomized design of a 4 x 6 split-plot scheme, which represents four points located according to plant location and six depths. Two points were located in the plant line and two points between lines. For row spacing, we used a split-plot scheme 5 x 6 with five points in relation with plant location and six depths with five replications. The coffee roots were analysed by volume,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffea canephora; Soil moisture; Irrigation management.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000100093