Consulta: subjectFacets:"Rainfed farming"
Registros recuperados: 11
Data/hora: 02/06/2024 16:58:37

Barraginhas: realimentação de aquíferos.
Provedor de dados: 14
Autores: BARROS, L. C. de; RIBEIRO, P. E. de A.
As barraginhas são pequenas bacias escavadas no solo em formato de prato, meia-lua e de arco de flecha, com diâmetro médio de 16 m e profundidade média de 1,2 m. São construídas dispersas nas pastagens, lavouras (no final das curvas de nível) e nas margens de estradas, para captar água de enxurradas, controlando a erosão e conservando a água no subsolo. As barraginhas não devem ser construídas em cursos de água perenes, nas áreas de proteção permanente (APPs), no interior das voçorocas e das grotas e em terrenos com inclinação acima de 12%. Um sistema de Barraginhas construídas em uma microbacia promove a elevação do lençol freático e o umedecimento das baixadas, proporcionando segurança hídrica para lavouras, mesmo em regiões semiáridas. Com a água...
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Barraginha; Captação de água de chuva; Barragem; Açude; Construção Rural; Manejo de Água; Manejo do Solo; Water harvesting; Water reservoirs; Surface water; Rain; Rainfed farming.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1099353

Watershed-Based Dryland Farming in black and red soils of Peninsular India
Provedor de dados: 30
Autores: S.M.
Palavras-chave: Watersheds; Dry farming; Arid zones; Credit; Water harvesting; Genetic soil types; Pigeonpeas; Bunding; Rainfed farming; Technology.
Ano: 1984
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4165

Strategic Analyses of the National River Linking Project (NRLP) of India, Series 2; Proceedings of the Workshop on Analyses of Hydrological, Social and Ecological Issues of the NRLP
Provedor de dados: 31
Tipo: Conference Paper or Presentation
Palavras-chave: River basin development; Development projects; Irrigation programs; Hydrology; Erosion; Water transfer; Cost benefit analysis; Groundwater irrigation; Dams; Environmental effects; Water storage; Crop management; Livestock; Gender; Rainfed farming; Supplemental irrigation; Water harvesting; Artificial recharge; Water market; Simulation models; Water allocation; Case studies; Livestock Production/Industries; Production Economics; Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/118387

Impact of irrigation on poverty and environment in Ethiopia. Draft Proceeding of the Symposium and Exhibition held at Ghion Hotel, Addis Ababa, Ethiopia 27th -29th November, 2007
Provedor de dados: 31
Autores: Awulachew,   Seleshi Bekele; Loulseged,   Makonnen; Yilma,   Aster Denekew.
Tipo: Presentation
Palavras-chave: Poverty; Crop management; Irrigated farming; Rainfed farming; Irrigation systems; Food security; Water harvesting; Institutions; Environmental effects; Public health; Malaria; GIS; Remote sensing; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Health Economics and Policy; Institutional and Behavioral Economics; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/118410

Strategic Analyses of the National River Linking Project (NRLP) of India, Series 1. India’s water future: scenarios and issues
Provedor de dados: 31
Tipo: Book
Palavras-chave: River basins; Environmental flows; Development projects; Water requirements; Irrigated farming; Water demand; Food demand Groundwater irrigation; Irrigation efficiency; Water harvesting; Supplemental irrigation; Water productivity; Water conservation; Drip irrigation; Sprinkler irrigation; Rainfed farming; Agricultural policy; Agricultural and Food Policy; Farm Management.
Ano: 2009
URL: http://purl.umn.edu/113261

A comparative analysis of the technical efficiency of rain-fed and smallholder irrigation in Ethiopia
Provedor de dados: 31
Autores: Makambe,   Godswill; Namara,   Regassa E.; Hagos,   Fitsum; Awulachew,   Seleshi Bekele; Ayana,   Mekonnen; Bossio,   Deborah A.
Agriculture is the most significant contributor to Ethiopia’s economy. Most of the agricultural production is under rainfed conditions and thus extremely sensitive to rainfall variability. Irrigation development, including smallholder irrigation, is used by the Ethiopian Government to attempt to mitigate the effects of rainfall variability. In this study, we look at smallholder irrigation - modern and traditional irrigation systems. A detailed description of the cropping patterns is given. The stochastic frontier production function approach is used to estimate technical inefficiency, and constraints to production are analyzed. Since the traditional system is found to be efficient but on a lower production frontier, the study shows that significant gains...
Tipo: Working or Discussion Paper
Palavras-chave: Rainfed farming; Irrigated farming; Efficiency; Irrigation schemes; Small scale systems; Cropping patterns; Crop production; Economic aspects; Statistical analysis; Agricultural and Food Policy; Crop Production/Industries; Production Economics.
Ano: 2011
URL: http://purl.umn.edu/118298

A comparative analysis of the technical efficiency of rain-fed and smallholder irrigation in Ethiopia
Provedor de dados: 31
Autores: Makombe,   Godswill; Namara,   Regassa E.; Hagos,   Fitsum; Awulachew,   Seleshi Bekele; Ayana,   Mekonnen; Bossio,   Deborah A.
Agriculture is the most significant contributor to Ethiopia’s economy. Most of the agricultural production is under rainfed conditions and thus extremely sensitive to rainfall variability. Irrigation development, including smallholder irrigation, is used by the Ethiopian Government to attempt to mitigate the effects of rainfall variability. In this study, we look at smallholder irrigation - modern and traditional irrigation systems. A detailed description of the cropping patterns is given. The stochastic frontier production function approach is used to estimate technical inefficiency, and constraints to production are analyzed. Since the traditional system is found to be efficient but on a lower production frontier, the study shows that significant gains...
Tipo: Working or Discussion Paper
Palavras-chave: Rainfed farming; Irrigated farming; Efficiency; Irrigation schemes; Small scale systems; Cropping patterns; Crop production; Economic aspects; Statistical analysis; Crop Production/Industries; Farm Management.
Ano: 2011
URL: http://purl.umn.edu/113012

UK parliamentary inquiry into global food crisis: call for evidence: How to better manage water so that 9 billion people can be fed equitably, healthily, safely and sustainably by 2050
Provedor de dados: 31
Autores: Chartres,   Colin J.
Invited submission from the International Water Management Institute (IWMI) to the United Kingdom Parliament on 2 June 2009.
Tipo: Report
Palavras-chave: Research institutes; Agricultural research; Policy; Water resource management; Irrigated farming; Rainfed farming; Farming systems; Food security; Water productivity; Water scarcity; Population growth; Water reuse; Food production; Water use; Biofuels; Urbanization; Climate change; Agricultural and Food Policy; Agricultural Finance; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Political Economy; Production Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2009
URL: http://purl.umn.edu/91800

National Conference on Water, Food Security and Climate Change in Sri Lanka, Volume 2: Proceedings of the Water Quality, Environment and Climate Change, BMICH, Colombo June 9-11, 2009
Provedor de dados: 31
Tipo: Presentation
Palavras-chave: Wetlands; Environmental flows; Assessment; Water allocation; Case studies; Rivers; Farming systems; Models; Groundwater; Aquifers; Domestic water; Rainfed farming; Climate change; Wastewater irrigation; Rice; Food security; Environmental Economics and Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Livestock Production/Industries; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2010
URL: http://purl.umn.edu/118404

Ecosystems for water and food security. [Background paper]
Provedor de dados: 31
Tipo: Book
Palavras-chave: Agroecosystems; Agriculture; Food security; Food production; Water scarcity; Water management; Water productivity; Wetlands; Water use; Decision making; Environmental flows; Developing countries; Hunger; Poverty; Fisheries; Climate change; Agroforestry; Biodiversity; Rangelands; Livestock; Rainfed farming; Policy; Landscape; Agribusiness; Agricultural and Food Policy; Agricultural Finance; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Demand and Price Analysis; Environmental Economics and Policy; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Production Economics.
Ano: 2012
URL: http://purl.umn.edu/124386

Supplemental irrigation using brackish water on maize in tropical semi-arid regions of Brazil: yield and economic analysis
Provedor de dados: 63
Autores: Cavalcante,Eduardo Santos; Lacerda,Claudivan Feitosa de; Costa,Raimundo Nonato Távora; Gheyi,Hans Raj; Pinho,Luciana Luzia; Bezerra,Francisco Mardones Sérvulo; Oliveira,Adriana Cruz de; Canjá,Juvenaldo Florentino.
ABSTRACT: Supplemental irrigation during dry spells could reduce maize yield losses in tropical semi-arid regions, notably in small farms. However, good quality water reserves are not sufficient to meet the demands of farming communities. Consequently, our objective was to evaluate the productivity and profitability of maize under different simulated rainfall scenarios, with and without supplemental irrigation (SI) with brackish water. The field experiments were carried out during the cropping seasons of 2018 and 2019 on Ultisol. The experiment followed a randomized block design in the split-plot scheme with four replicates. The plots were formed by simulating the water supply in the soil corresponding to four water scenarios (rainy, normal, drought and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rainfed farming; Salinity; Supplementary irrigation; Biosaline agriculture.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000700601