Consulta: subjectFacets:"Localized irrigation"
Registros recuperados: 7
Data/hora: 12/06/2024 11:40:01

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

STATISTICAL PROCESS CONTROL IN THE ASSESSMENT OF DRIP IRRIGATION USING WASTEWATER
Provedor de dados: 70
Autores: Acuña Chinchilla,Sisgo R.; Silva,Ênio F. de F. e; Almeida,Ceres D. G. C. de; Silva,Alexsandro O. da; Santos,Patrício R. dos.
ABSTRACT The aim of this study was to evaluate drip irrigation as a process, by monitoring the average flow applied by the emitter using tools of statistical quality control. Four kinds of drippers were selected, two inline labyrinth type and two online where one of the inline emitters was not self-compensating and the other, self-compensating emitter. The system was installed in the field and tested for 85 hours, using three kinds of treated domestic sewage effluents and tap water. The system was under statistical control when the emitters were new, however none of the drippers reaches the manufacturer's specification for average flow. The online drippers showed more dispersion for individual flow measurements and the non-self-compensating inline dripper...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Domestic sewage effluent; Reuse; Emitters; Localized irrigation.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000100047

Equipamento para pesquisa de irrigação em fruteiras tropicais com controle automático de aplicação de água.
Provedor de dados: 14
Autores: NOGUEIRA, L. C.; COSTA, A. S. da; BARRETO, A. N.; GORNAT, B.; AGUIAR NETTO, A. de O.
E apresentado um estudo de caso, os equipamentos e os esquemas de montagem para possibilitar a realização de pesquisa de irrigação, com três sistemas e três lâminas aplicados a três fruteiras tropicais, com fertirrigação e controle automático da aplicação de água.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Irrigation equipment; Tropical fruits; Localized irrigation; Watering.; Automação; Equipamento de Irrigação; Fruta Tropical; Fertirrigação; Irrigação Localizada; Manejo de Água.; Automation; Fertigation; Water management.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/370881

Sistema de irrigação por mangueiras.
Provedor de dados: 14
Autores: SOARES, J. M.; SANTOS, E. D.
O sistema de irrigação por mangueiras caracteriza-se pela condução da água através de tubulação e de sua aplicação por meio de mangueiras flexíveis. Funciona sob condições de baixa pressão (3m) e média pressão (7m); Não requer a filtragem de água de irrigação; Aproveita fontes de água de pequena vazão (5 e/s) ou volume; Explora terrenos que apresentam limitações topográficas dos solos; Pode permitir a aplicação localizada da água; Aproveita mão-de-obra familiar; Explora culturas anuais ou perenes; Menor custo de investimento em relação aos demais sistemas de irrigação.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Mangueira; Dimensionamento; Localized irrigation; Management; Cost.; Irrigação; Custo; Método.; Irrigation; Design.
Ano: 1986
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133452

EFFECTS OF SALINE WATER ON TOMATO UNDER SUBSURFACE DRIP IRRIGATION: NUTRITIONAL AND FOLIAR ASPECTS
Provedor de dados: 126
Autores: Kahlaoui,B; Hachicha,M; Rejeb,S; Rejeb,M.N; Hanchi,B; Misle,E.
A field experiment on the effects of drip irrigation (DI) and subsurface drip irrigation (SDI) with saline water (6.57 dS m-1) on three tomato cultivars (Lycopersicon esculentum Mill., cvs. Rio Tinto, Rio Grande and Nemador) was carried out with the purpose to quantify physiological responses. The aim was to improve irrigation water management under saline conditions of Tunisia. The trial was established in a silt-clayey soil with three regimes of irrigation: 100 %, 85 % and 70 % of crop water requirement. Results evidenced a significant difference between the two irrigation systems for the three cultivars. Growth parameters such as leaf area, chlorophyll content and mineral composition of leaves, petioles, stems and roots were affected significantly by...
Tipo: Journal article
Palavras-chave: Salt tolerance; Tomato; Localized irrigation; Deficit irrigation; Tunisia.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162011000100007

Assessment methodology of backwash in pressurized sand filters
Provedor de dados: 91
Autores: Deus,Fábio P. de; Testezlaf,Roberto; Mesquita,Marcio.
ABSTRACT The objective of this study was to apply a methodology based on sampling sand from contaminated filter beds, to evaluate the performance of the backwash process in pressurized sand filters used in irrigation. Backwash trials were conducted in an experimental module with three new sand filters of the same commercial model. The evaluations were conducted after filtration processes performed using four filtration rates and three separate sand particle sizes (fine - 0.55 mm; medium - 0.77 mm, and coarse sand - 1.04 mm diameter), repeated in three subsequent cycles. After reaching a fixed expansion of 25% of the filter bed height, the backwash processes were performed for 15 min. Backwash cleaning efficiency was evaluated in all trials based on the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Localized irrigation; Water treatment; Emitters clogging.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000700600

Distribution of the root system of peach palm under drip irrigation
Provedor de dados: 1
Autores: Lopes, Adriano da Silva; Universidade Estadual de Mato Grosso do Sul; Hernandez, Fernando Braz Tangerino; Universidade Estadual de Mato Grosso do Sul; Alves Júnior, José; Universidade Federal de Goiás; Oliveira, Gabriel Queiroz de; Universidade Federal da Grande Dourados.
The incorporation of technologies has resulted in increased productivity and the more rational management of peach palm, with irrigation being an important tool for certain regions. Thus, studies leading to proper crop management are extremely important, such as the estimate of the effective depth of the root system, which is indispensable for proper irrigation management. The objective of this study was to evaluate the effects of different irrigation depths, as applied by drip irrigation, on the distribution of the root system of peach palm. This experiment was conducted in Ilha Solteira, São Paulo State, Brazil, with drip irrigation, with the two systems (flow of 0.0023 m3 h-1) consisting of four irrigation treatments corresponding to 0, 50, 100 and 150%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Engenharia Agrícola; Irrigação Bactris gasipaes; Roots; Localized irrigation; Irrigation management 5.03.02.01-9.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/16281