scholarly journals ANÁLISE DA UNIFORMIDADE DE APLICAÇÃO EM DIFERENTES SISTEMAS DE CULTIVO COM IRRIGAÇÃO LOCALIZADA

Irriga ◽  
2017 ◽  
Vol 1 (1) ◽  
pp. 57-63
Author(s):  
Kevim Muniz Ventura ◽  
Regiane De Carvalho Bispo ◽  
ROBERTA DANIELA DA SILVA SANTOS ◽  
MARCELLO HENRYQUE COSTA DE SOUZA ◽  
RODRIGO MÁXIMO SÁNCHEZ ROMÁN
Keyword(s):  
Drip Irrigation ◽  
Agricultural Research ◽  
Cropping Systems ◽  
Irrigation Management ◽  
Water Application ◽  
Irrigation Systems ◽  
Uniformity Coefficient ◽  
Irrigation Uniformity ◽  
Vertical System

ANÁLISE DA UNIFORMIDADE DE APLICAÇÃO EM DIFERENTES SISTEMAS DE CULTIVO COM IRRIGAÇÃO LOCALIZADA   KEVIM MUNIZ VENTURA1; REGIANE DE CARVALHO BISPO1; ROBERTA DANIELA DA SILVA SANTOS1; MARCELLO HENRYQUE COSTA DE SOUZA1 E RODRIGO MÁXIMO SÁNCHEZ ROMÁN2   1Programa de Pós-Graduação em Irrigação e Drenagem, Universidade Estadual Paulista “Julio de Mesquita Filho” - UNESP/FCA, Rua José Barbosa de Barros, 1780, Botucatu, SP, [email protected], [email protected], [email protected], [email protected]. 2Professor assistente, Departamento de Engenharia Rural, FCA/UNESP. Botucatu, SP, [email protected] *Extraído da dissertação de mestrado do primeiro autor.     1 RESUMO   A crescente necessidade de elevar a produção em menos espaço guia as pesquisas agropecuárias visando criar tecnologias que busquem atender essa demanda. A possibilidade de produzir hortaliças de forma alternativa é algo que desperta atenção nos agricultores familiares e moradores de áreas urbanas que desejam produzir o próprio alimento. A irrigação é uma das práticas de maior importância para o sucesso de uma horta, seja ela convencional ou vertical, por isso é de suma importância que sistemas de irrigação apresentem uma boa uniformidade de aplicação de água. Desta forma, avaliar o sistema é uma etapa primordial para garantir o adequado manejo da irrigação. O objetivo deste trabalho foi avaliar os coeficientes de uniformidade (Christiansen, de distribuição, estatístico e eficiência de aplicação) em uma fita gotejadora após 2 ciclos, em dois sistemas de cultivo (convencional e vertical). Com os resultados obtidos, foi possível observar que a fita utilizada no sistema vertical obteve coeficientes de uniformidade superiores com o passar dos ciclos, garantindo que a aplicação de água neste sistema fosse mais satisfatória que o sistema convencional.   Palavras-chave: Sistema vertical, gotejamento, coeficiente de uniformidade     VENTURA, K. M.; BISPO, R. DE C.; SANTOS, R. D. S.; SOUZA, M. H. C.; SÁNCHEZ-ROMÁN, R. M. ANALYSIS OF APPLICATION UNIFORMITY IN DIFFERENT LOCALIZED IRRIGATION SYSTEMS     2 ABSTRACT   The growing need to leverage production in less space drives the agricultural research, making it to create technologies that seek to meet this demand. The possibility of producing vegetables in an alternative way is something that draws the attention of family of farmers and urban dwellers who wish to produce their own food. Irrigation is one of the most important practices for the success of a conventional or vertical garden, so it is critical that irrigation systems have an excellent uniformity in the water application. Thus, to evaluate the system is a primordial stage to guarantee the adequate irrigation management. This work aims to evaluate the uniformity coefficients (Christiansen, distribution and statistical coefficients) in a drip tape after 2 cycles, in two cropping systems (traditional and vertical). With the results obtained, it was possible to observe that the drip tape used in the vertical system got higher uniformity coefficients than the conventional one, ensuring that the application of water in this system was more satisfactory.   Keywords: Vertical system, drip irrigation, uniformity coefficient

scholarly journals DIAGNÓSTICO DA APLICAÇÃO DE ÁGUAS RESIDUÁRIAS DA SUINOCULTURA NA CAFEICULTURA IRRIGADA II. AVALIAÇÃO DA UNIFORMIDADE DE APLICAÇÃO DE ÁGUA

Irriga ◽  
2006 ◽  
Vol 11 (3) ◽  
pp. 402-141
Author(s):  
Roberta Alessandra Bruschi Gonçalves ◽  
Everardo Chartuni Mantovani ◽  
Márcio Mota Ramos ◽  
Luiz Otávio Carvalho de Souza
Keyword(s):  
Irrigation System ◽  
Crop Productivity ◽  
Distribution Coefficients ◽  
Minas Gerais ◽  
Water Application ◽  
Coffee Plantations ◽  
Uniformity Coefficient ◽  
Filtration System ◽  
Irrigation Uniformity ◽  
Minas Gerais State

DIAGNÓSTICO DA APLICAÇÃO DE ÁGUAS RESIDUÁRIAS DA SUINOCULTURA NA CAFEICULTURA IRRIGADAII. AVALIAÇÃO DA UNIFORMIDADE DE APLICAÇÃO DE ÁGUA  Roberta Alessandra Bruschi Gonçalves; Everardo Chartuni Mantovani; Márcio Mota Ramos; Luiz Otávio Carvalho de SouzaDepartamento de Engenharia Agrícola, Universidade Federal de Viçosa , Viçosa-MG, [email protected]  1 RESUMO             A uniformidade de aplicação de água influencia diretamente a produtividade das culturas, que tende a aumentar com a uniformidade de irrigação. O objetivo deste trabalho foi determinar os coeficientes de uniformidade de distribuição de água residuária da suinocultura (ARS) em 6 propriedades cafeeiras, que aplicam ARS via sistema de irrigação, localizadas em 5 diferentes municípios da região de cerrado de Minas Gerais. Do total de sistemas avaliados, 50% apresentaram coeficientes de uniformidade de distribuição de água residuária (CUC/CUD) abaixo do recomendado. Os melhores resultados estão associados ao sistema de irrigação localizada por gotejamento, mostrando a viabilidade da utilização do mesmo, desde que haja manejo adequado ao longo de todo o processo de tratamento do efluente, inclusive no sistema de filtragem do equipamento. UNITERMOS: café, reuso, irrigação GONÇALVES, R. A. B.; MANTOVANI, E. C.; RAMOS, M. M.; SOUZA, L. O. C. de; ANALYSIS OF SWINE CULTURE WASTEWATER APPLICATION ON IRRIGATED COFFEE CROP  -  II. EVALUATION OF WATER APPLICATION UNIFORMITY  2 ABSTRACT            Water application uniformity influences crop productivity that is likely to increase with irrigation uniformity. The objective of this work was to determine the uniformity distribution coefficients of swine culture wastewater on coffee plantations (SCW); the analysis was carried out on 6 farms in the Minas Gerais State cerrado region that use SCW through their irrigation system. Half of the assessed systems presented water application uniformity coefficient below the recommended limit. The best results were associated to drop irrigation, showing the viability of this irrigation system use if there is an appropriate management throughout the entire treatment process, including equipment filtration system management. KEYWORDS: coffee, irrigation, reuse

scholarly journals Subsurface Drip Irrigation (SDI) for Enhanced Water Distribution: SDI - Seepage Hybrid System

EDIS ◽  
2013 ◽  
Vol 2013 (4) ◽  
Author(s):  
Lincoln Zotarelli ◽  
Libby Rens ◽  
Charles Barrett ◽  
Daniel J. Cantliffe ◽  
Michael D. Dukes ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Water Distribution ◽  
Management Practices ◽  
Irrigation Management ◽  
Soil Surface ◽  
High Water ◽  
Subsurface Drip Irrigation ◽  
Irrigation Systems ◽  
Seepage Irrigation ◽  
Subsurface Drip

In terms of water use efficiency, the traditional seepage irrigation systems commonly used in areas with high water tables are one of the most inefficient methods of irrigation, though some irrigation management practices can contribute to better soil moisture uniformity. Subsurface drip irrigation systems apply water below the soil surface by microirrigation, improving the water distribution and time required to raise the water table for seepage irrigation. This 6-page fact sheet was written by Lincoln Zotarelli, Libby Rens, Charles Barrett, Daniel J. Cantliffe, Michael D. Dukes, Mark Clark, and Steven Lands, and published by the UF Department of Horticultural Sciences, March 2013. http://edis.ifas.ufl.edu/hs1217

scholarly journals A simplified method to improve water distribution and application uniformity for sprinkler irrigation on sloping land: adjustment of riser orientation

2020 ◽  
Author(s):  
Xin Hui ◽  
Haijun Yan ◽  
Lin Zhang ◽  
Junying Chen
Keyword(s):  
Soil Erosion ◽  
Water Distribution ◽  
Sprinkler Irrigation ◽  
Water Application ◽  
Irrigation Systems ◽  
Irrigation Projects ◽  
Irrigation Uniformity ◽  
Simplified Method ◽  
Investment Cost ◽  
Sloping Land

Abstract To improve the water application uniformity for sprinkler irrigation on sloping land, indoor tests were conducted on an artificial slope (slopes of 0, 0.05, 0.10 and 0.15) to evaluate the effects of two riser orientations, vertical (VO) and perpendicular (PO) to the slope, on the uniformity of sprinkler rotation, radius of throw, water distribution of an individual sprinkler and the overlapped water application uniformity (WAU). Compared with the VO, the PO could effectively improve the water distribution on sloping land and minimize the risk of soil erosion. Additionally, the PO was superior in the WAU, and a rectangular arrangement could dramatically enhance the WAU at smaller sprinkler spacing, while larger acceptable sprinkler spacing was accepted in a triangular arrangement. The riser orientation and sprinkler spacing had the most significant effect on the WAU, followed by the slope and sprinkler arrangement, suggesting that the adjustment of riser orientation or sprinkler spacing was helpful in improving the WAU. However, from the aspects of investment cost and installation convenience for irrigation projects, the method of PO was recommended. Therefore, when designing the sprinkler irrigation systems on the slope, choosing PO is the simplest and most effective way to achieve good irrigation uniformity.

Soil moisture distribution under trickle irrigation: a review

2020 ◽  
Vol 20 (3) ◽  
pp. 761-772 ◽  
Author(s):  
Arpna Bajpai ◽  
Arun Kaushal
Keyword(s):  
Soil Moisture ◽  
Drip Irrigation ◽  
Moisture Distribution ◽  
Soil Conditions ◽  
Initial Water Content ◽  
Water Application ◽  
Trickle Irrigation ◽  
Irrigation Systems ◽  
Application Rates ◽  
Soil Moisture Distribution

Abstract The wetting pattern of soil under trickle (drip) irrigation is governed by soil texture, structure, initial water content, emitter spacing, discharge rate and irrigation frequency. For efficient management of trickle irrigation moisture distribution plays an important role. The degree of soil wetted volume in an irrigation system determines the amount of water required to wet the root zone. This article helps in understanding moisture distribution for different lateral spacing, emitter spacing, emitter discharge rates and drip line installation depth for trickle irrigation under various soil conditions all over the world. This review reveals that soil moisture distribution and uniformity within the soil profile were affected by the distance between emitters rather than the distance between drip lines. In drip irrigation systems, the less the dripper spacing, the greater the moisture distribution as well as water use efficiency and crop yield. The radial spread of moisture was greater at lower water application rates, whereas the vertical spread was greater at higher water application rates. The vertical movement of soil moisture was greater than the horizontal movement under surface as well as subsurface drip irrigation systems. Deeper drip tape installations had a potential risk of not providing moisture to shallow rooted crops.

scholarly journals Performance of irrigation systems located in the culture of sweet potato in Guaraciaba do Norte-CE

2020 ◽  
Vol 13 (4) ◽  
pp. 35
Author(s):  
J. B. Martins Filho ◽  
M. F. Farias
Keyword(s):  
Sweet Potato ◽  
Drip Irrigation ◽  
Potato Crop ◽  
Sweet Potatoes ◽  
Irrigation Systems ◽  
Flow Rates ◽  
Uniformity Coefficient ◽  
Application Efficiency ◽  
Distribution Uniformity

Irrigation systems may exhibit variations in performance when poorly dimensioned or depending on the time of use. In this sense, the objective of this study was to evaluate the performance of irrigation systems located by micro sprinkler and drip irrigation in the sweet potato crop in a family property in the municipality of Guaraciaba do Norte-CE. The property under study in this research has a total area of 2.5 ha. The area cultivated with sweet potatoes is 120 m2 with 50% of the area irrigated by drip irrigation and the remainder irrigated by micro sprinkler. In order to analyze the performance of the irrigation systems, the methodology proposed by Keller and Karmeli (1975) was adopted, in which the flow rates of the emitters are determined in pre-established positions. Were determined the coefficients of uniformity of Christiansen (CUC); coefficient of statistical uniformity (CUE); Hart uniformity coefficient and distribution uniformity coefficient (CUD). Irrigation systems presented uniformity coefficients higher than 90%, for all the equations applied in this work, both also presented application efficiency higher than 85%. Due to the high coefficients of uniformity found it was concluded that the irrigation systems located on the property were well sized and mounted

scholarly journals Effects of Irrigation Nonuniformity on Nitrogen and Water Use Efficiencies in Shallow-rooted Vegetable Cropping Systems

HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 446B-446
Author(s):  
B. Sanden ◽  
L. Wu ◽  
J.P. Mitchell ◽  
L. Pan ◽  
R. Strohman
Keyword(s):  
Water Use ◽  
Irrigation Water ◽  
Water Distribution ◽  
Cropping Systems ◽  
Irrigation Management ◽  
Sprinkler Irrigation ◽  
Initial Stage ◽  
Irrigation Uniformity ◽  
Distribution Uniformity ◽  
Set Up

This research tests the hypothesis that decreasing lateral spacing from 45 to 35 feet in solid-set sprinkler systems increases the uniformity of irrigation water distribution and improves water and N fertilizer use efficiencies. Three different spacings between sprinkler laterals (35', 40', and 45') were set up in three blocks in a 60-acre commercial carrot field in Western Kern County in California's San Joaquin Valley. Determinations of irrigation water distribution uniformity, yields, crop water use, plant growth, and nitrate leaching were made. Mean sprinkler distribution uniformities (DU) were found to be 80.6%, 78.1%, and 86% for the 35-, 40-, and 45-ft spacings, respectively. Total carrot yield and quality did not differ significantly among the three spacings, corroborating the finding that irrigation uniformities were similar among the treatments. Although the three lateral spacings evaluated in this initial experiment did not result in major differences in irrigation uniformity, total yields, or quality, the findings of this initial stage of our research are significant. They point to the need for new assessments of currently used protocols for evaluating sprinkler irrigation management of water and nitrogen fertilizer if they can be confirmed by repeated trials in coming years.

scholarly journals EFICIÊNCIA DA APLICAÇÃO DA ÁGUA POR PIVÔ CENTRAL EM DIFERENTES REGIÕES DE MINAS GERAIS

Irriga ◽  
2017 ◽  
Vol 22 (4) ◽  
pp. 821-831
Author(s):  
Cristian Epifânio Toledo ◽  
Cláudio Márcio Pereira de Souza ◽  
Paulo Emilio Pereira de Albuquerque
Keyword(s):  
Control Systems ◽  
Water Distribution ◽  
Field Tests ◽  
Minas Gerais ◽  
Water Application ◽  
Good Efficiency ◽  
Uniformity Coefficient ◽  
Normal Limits ◽  
Irrigated Area ◽  
Irrigation Uniformity

EFICIÊNCIA da APLICAÇÃO DA ÁGUA por PIVô CENTRAL EM DIFERENTES REGIÕES DE MINAS GERAIS.     CRISTIAN EPIFÂNIO TOLEDO1; PAULO EMILIO PEREIRA DE ALBUQUERQUE2 E CLÁUDIO MÁRCIO PEREIRA DE SOUZA3   1Departamento de Agronomia, UEG – Universidade Estadual de Goiás, Campus Palmeira de Goiás, Go. Rua 7, s/n, CEP  76.190-000. Email: [email protected] 2Departamento de Núcleos Temáticos, EMBRAPA – Empresa Brasileira de Pesquisa Agropecuária, Sete Lagoas, MG. Email: [email protected] 3Departamento de Agronomia, UFVJM – Universidade Federal dos Vales Jequitinhonha e Mucuri, Campus Diamantina, MG. Email: [email protected]     1 RESUMO   A prática da irrigação garante o suprimento da água onde há demanda, sendo imprescindível o uso eficiente desse recurso. Objetivou-se avaliar o desempenho de sistemas de pivôs centrais de propriedades rurais em diferentes regiões de Minas Gerais (MG). Foram realizados testes de campo para determinação dos coeficientes de uniformidade de distribuição de água, permitindo assim avaliar as eficiências dos pivôs centrais. Os parâmetros estudados foram: uniformidade de aplicação de água (CUC e CUD), eficiência de irrigação e percentagem de área adequadamente irrigada. Os pivôs centrais testados apresentaram em geral, níveis aceitáveis de uniformidade de aplicação de água. Os CUCs e CUDs em 82% dos sistemas avaliados apresentaram valores acima de 80% e 70%, respectivamente. A eficiência de aplicação de água também apresentou valores dentro do admissível e do normal, obtendo-se uma média de 91%, também caracterizando uma boa eficiência de aplicação de água. A percentagem de área adequadamente irrigada apresentou uma média de 49%, considerada regular. Assim, pode-se caracterizar os sistemas avaliados como de bom funcionamento.   Palavras-chave: Pivô central; uniformidade de irrigação; coeficiente de uniformidade     TOLEDO, C. E.; ALBUQUERQUE, P, E. P.; SOUZA, C. M. P. EFFICIENCY OF WATER APPLICATION BY A CENTRAL PIVOT IN DIFFERENT REGIONS OF MINAS GERAIS     2 ABSTRACT   The practice of irrigation guarantees water supply where there is demand, and the efficient use of this resource is essential. The objective of this study was to evaluate the performance of central pivot systems of rural properties in different regions of Minas Gerais (MG). Field tests were performed to determine the coefficients of water distribution, thus allowing the evaluation of the efficiency of the central pivots. The parameters studied were: uniformity of water application (CUC and CUD), irrigation efficiency, and percentage of adequately irrigated area. The central pivots tested showed, in general, acceptable levels of water application uniformity. The CUCs and CUDs are 82% of the environmental systems presented values above 80% and 70%, respectively. The efficiency of water application also presented values within the allowable and normal limits, obtaining an average of 91%, also characterizing a good efficiency of water application. A percentage of adequately irrigated area reached an average of 49%, being considered regular. Thus, control systems can be characterized as being functional systems.   Keywords: Central pivot; irrigation uniformity; uniformity coefficient  

scholarly journals Economic viability of retrofiting emitters in center pivot irrigation systems

2012 ◽  
Vol 32 (3) ◽  
pp. 602-608 ◽  
Author(s):  
Cornélio A. Zolin ◽  
Rubens D. Coelho ◽  
Janaina Paulino ◽  
Marcos V. Folegatti
Keyword(s):  
Decision Making ◽  
Irrigation System ◽  
Potato Crop ◽  
Economic Viability ◽  
Water Application ◽  
Economic Perspective ◽  
Sale Price ◽  
Irrigation Systems ◽  
Uniformity Coefficient ◽  
Center Pivot

Although several studies have been conducted to evaluate the uniformity of water application under center pivot irrigation systems, there are few studies concerning the economic perspective of such coefficient. The aim of this study is to present a methodology to accomplish an economic analysis as support for the decision-making to retrofit emitters in center pivot irrigation systems, and to attribute an economic meaning to the uniformity coefficient of water application taking into account the response function productivity to the amount of water applied and the sale price of the crops. In the hypothetic calculation example considering the variation of revenue of potato crop under center pivot irrigation system, it was verified that the area with uniformity coefficient of water application of 90% brought an income increase of BR$ 1,992.00, considering an area about 1,0 ha. Thus, it can be concluded that the methodology presented has met the objectives proposed in the study and made it possible to attribute an economical meaning to the coefficient of water uniformity application.

scholarly journals DESIGN OF AN ELECTRONIC SYSTEM FOR DRIP EMITTERS ANALYSIS IN IRRIGATION SYSTEMS

Irriga ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 71-78
Author(s):  
Diego Scacalossi Voltan ◽  
João E. M. Perea Martins ◽  
Rogério Zanarde Barbosa
Keyword(s):  
Drip Irrigation ◽  
Electronic System ◽  
Automatic Monitoring ◽  
State University ◽  
Long Distance ◽  
Irrigation Systems ◽  
Radio System ◽  
Paulo State ◽  
Irrigation Uniformity ◽  
E Mail

DESIGN OF AN ELECTRONIC SYSTEM FOR DRIP EMITTERS ANALYSIS IN IRRIGATION SYSTEMS     DIEGO SCACALOSSI VOLTAN; João EDUARDO MACHADO Perea Martins 1 AND Rogério ZANARDE Barbosa2   1 Computer Science Department, School of Sciences (FC), São Paulo State University (UNESP), 17033-360, Bauru-SP, Brazil. E-mail: [email protected]. Orcid  iD https://orcid.org/0000-0003-1056-497X 2 Faculty of Higher Education and Integral Formation (FAEF), 17400-000, Garça-SP, Brazil. E‑mail: [email protected].     1 ABSTRACT   This work shows the design of a system for automatic monitoring of drip emitters in irrigation processes, which allows the counting of drops from an emitter and also the accumulated water weighing. Its main goal is to provide an electronic system for verification of drip irrigation uniformity, whose physical measured parameters can be sent to a computer through a direct cable or through a radio system that allows long distance monitoring.   Keywords: Drip irrigation, automation, uniformity     VOLTAN, D. S.; Perea Martins, J.E.M.; Barbosa, R. Z. PROJETO DE UM SISTEMA ELETRÔNICO PARA ANÁLISE DE GOTEJADORES EM SISTEMAS DE IRRIGAÇÃO     2 RESUMO   Este trabalho mostra o projeto de um sistema para monitoramento automático de gotejadores em processos de irrigação, o qual permite a contagem do número de gotas de um gotejador e também permite a pesagem de água acumulada. O objetivo principal é fornecer um sistema eletrônico para verificação da uniformidade da irrigação por gotejamento, cujos parâmetros físicos medidos podem ser enviados para um computador diretamente através de um cabo ou através de um sistema de rádio que permite o monitoramento a longa distância.   Palavras-chave: Irrigação por gotejamento, automação, uniformidade.

Sign in / Sign up

Export Citation Format

Share Document