scholarly journals Design Considerations for Vegetable Crop Drip Irrigation Systems

1996 ◽  
Vol 6 (3) ◽  
pp. 155-159 ◽  
Author(s):  
Gary A. Clark ◽  
Allen G. Smajstrla

Proper design and installation are essential to provide a drip irrigation system that can be managed with minimal inputs and maximum profit. Because drip irrigation can apply precise amounts of water and chemicals, constraints associated with the plants, soil, water supply, and management must be considered in the design, installation, and management processes.

Irriga ◽  
2018 ◽  
Vol 21 (3) ◽  
pp. 491
Author(s):  
ROBERTO CASTRO NASCIMENTO ◽  
PEDRO ROBINSON FERNANDES DE MEDEIROS ◽  
GABIANE SOUZA SANTOS ◽  
ELTON CARLOS PEREIRA VIEIRA DE ALENCAR TELES ◽  
DAYANE RODRIGUES GONÇALVES ◽  
...  

DINÂMICA DA OBSTRUÇÃO DE EMISSORES USADOS NA CULTURA DA UVA UTILIZANDO ÁGUA SALINA DE POÇO SUBTERRANEO  ROBERTO CASTRO NASCIMENTO1; PEDRO ROBINSON FERNANDES DE MEDEIROS2; GABIANE SOUZA SANTOS1; ELTON CARLOS PEREIRA VIEIRA DE ALENCAR TELES1; DAYANE RODRIGUES GONÇALVES1 E ANA PRISCILA FELIX MARTINS2 1Engenharia Agrícola, Universidade Federal do Vale do São Francisco – Campus Juazeiro, Av. Antonio Carlos Magalhães, 510 Country Club, CEP: 48.902-300 – Juazeiro, BA. [email protected], [email protected], [email protected], [email protected] de Engenharia Agrícola e Ambiental, Universidade Federal do Vale do São Francisco – Campus Juazeiro, Av. Antonio Carlos Magalhães, 510 Country Club, CEP: 48.902-300 – Juazeiro, BA. [email protected]  1 RESUMO A irrigação localizada envolve os sistemas onde a água é aplicada diretamente sobre a região da raiz, em pequenas intensidades, mas com alta freqüência, a fim de manter a umidade do solo na zona radicular próxima à capacidade de campo, sendo de grande importância no cenário agrícola brasileiro, com aplicações voltadas principalmente para a fruticultura, horticultura e fertirrigação. Os sistemas de irrigação localizada de alta frequência são os mais afetados pela obstrução dos emissores decorrente da contaminação da água. Este trabalho objetivou avaliar a obstrução de emissores em um sistema de irrigação por gotejamento usado na cultura da uva por 5 anos, com fertirrigação, utilizando água salina de poço profundo, afim de apontar possíveis causas e sugerir soluções que permitam o uso otimizado da água de irrigação. Como referência, os tubos gotejadores inicialmente foram submetidos a 360 h de irrigação com água do Serviço Autônomo de Água e Esgoto de Juazeiro-BA (SAAE) e posteriormente com água do Rio São Francisco.  O trabalho foi desenvolvido no Laboratório de Irrigação, no Campus de Juazeiro/BA, da UNIVASF. A estatística foi à descritiva, por medidas de tendência central e por medidas de dispersão de dados. Como principais resultados têm-se que os emissores com cinco anos de uso na fertirrigação, apresentaram inicialmente um grau de entupimento de 16,5%, bem superior se comparado com o mesmo tubo gotejador novo, em torno de 7%; com um aumento nos valores para 18% e 11%, respectivamente. Foi verificado que a água salina causou uma obstrução parcial maior que a água tratada do abastecimento. PALAVRAS CHAVE: grau de entupimento, água salina, uniformidade de aplicação.  NASCIMENTO, R. C.; MEDEIROS, P. R. F.; SANTOS, G. S.; TELES, E. C. P. V. A.; GONÇALVES, D. R.; MARTINS, A. P. F.DYNAMICS OF OBSTRUCTION OF THE ISSUER USED IN GRAPE CULTURE USING SALINE WATER WELL UNDERGROUND    2 ABSTRACT The drip irrigation involves irrigation systems where water is applied directly to the root area in small intensities, but with high frequency in order to maintain soil moisture in the root zone close to field capacity, and is of great importance in the Brazilian agricultural scenario, with applications geared mainly for fruits, vegetables and fertigation. High frequency localized irrigation systems are the most affected by obstruction of emitter due to water contamination. This study evaluated the emitters obstruction in a drip irrigation system used in wine growing for 5 years, with fertigation using saline water from deep well, in order to identify possible causes and suggest solutions to the optimal use of water irrigation. As reference, the drip irrigation system was subject to 360 h of irrigation with water and then with SAAE water from São Francisco River. The work was developed in the Irrigation Laboratory in the campus of Juazeiro / BA, UNIVASF. Statistical analysis was descriptive, for measures of central tendency and data dispersion measures. And the main results is that for the issuing company with five years of use in fertigation, initially, the proportion was 16.5% clogging, much higher compared to the same new dripline, around 7%; with 18% and 11% increase in  values for, respectively. It has been found that the saline water caused a partial obstruction greater than that of the treated water supply. Keywords: degree of clogging, salt water, uniformity of application.


1992 ◽  
Vol 2 (1) ◽  
pp. 91-94 ◽  
Author(s):  
J.W. Prevatt ◽  
G.A. Clark ◽  
C.D. Stanley

Three vegetable irrigation systems, semi-closed subirrigation (seepage), fully enclosed subirrigation (seepage), and drip irrigation, were evaluated for use on sandy soils with naturally high water tables to determine comparative irrigation costs for tomato production. Investment, fixed (ownership), and variable (operating) costs were estimated for each irrigation system. The investment costs of the drip irrigation system were significantly greater than those for the semi-closed and fully enclosed irrigation systems. The variable costs, however, for the semi-closed system were considerably less than those for the fully enclosed and drip irrigation systems. The semi-closed irrigation system, therefore, was determined to be the least-cost tomato irrigation system under present fuel cost and nonlimiting water supply conditions.


Author(s):  
Nina Karpenko ◽  
Daulet Egemberdiev ◽  
Indira Kudaybergenova

The article substantiates and develops the technology of cultivation of perspective fodder crop – maize in Zhambyl region of Kazakhstan. The technology for irrigation of land provides for the use of drip irrigation system. The optimal irrigation regime was established for promising forage crops in fodder crop rotations. Changes in the structure of acreage and crop rotations can significantly reduce water consumption, smooth out peak loads in the water supply in the summer months, reduce the hydraulic module of the irrigation system in farms


Author(s):  
Meseret Dawit ◽  
Megersa Olumana Dinka ◽  
Olkeba Tolessa Leta

Integration of advanced irrigation systems and technology is essential to improve crop water productivity and yields, especially in developing countries. This study aims at investigating the effects of adopting a drip irrigation system combined with hand-dug wells on crop water productivity and yields of household farmers and their perception on the proposed scheme over two cropping seasons in the Haramaya District, Ethiopia. We chose three locally called “Kebeles” within the District, and selected a certain number of household farmers that had similar characteristics within each Kebele. The selected farmers had practiced both the proposed drip irrigation with private hand-dug wells water supply (intervention pilots) and traditionally-used surface irrigation with communal water supply (non-intervention pilots) schemes. We also conducted interviews with the selected household farmers, personal observations, and measurements on crop water productivity and yields for both intervention and non-intervention pilots. We found that the proposed drip irrigation system significantly improved the crop productivity and yields of the farmers. More importantly, findings indicated that the use of drip irrigation system combined with hand-dug well water supplies reduced the over-exploitation of water (water savings) and labor-intensive manual-irrigation. The latter particularly helped women to work less on their farm works and thus provided them a flexible system to expand their plot sizes and grow a variety of crops. Overall, the drip irrigation system with water supply from hand-dug wells is highly recommended as it allows a flexible system for household farmers and provides an opportunity to expand their plot sizes with a variety of crops, which is also expected to mitigate the negative implications of climate change on freshwater water resources and crop productivity. However, the farmers of the Haramaya District expressed their need on capacity building, financial and technical supports from local to regional governments and other agencies to ensure an efficient and cost-effective drip irrigation system and to further improve their crop water productivity and yield, food self-sufficieny, and livelihoods. It is also important to consider market-based farming approaches, while promoting efficient irrigation systems and self-supply to ensure quick investment returns. This study recommends to adopt and expand the proposed drip irrigation system at household levels in Sub-Saharan and other similar regions.


2017 ◽  
Vol 19 (2) ◽  
pp. 71-77 ◽  
Author(s):  
HA Archana ◽  
N Asoka Raja ◽  
R Mahesh ◽  
R Kalpana

A study was conducted to determine the effect of low cost drip tape irrigation system on yield and economics of sweet corn in comparison to conventional inline drip irrigation and surface irrigation systems during 2013-14 at Coimbatore, India. The treatment comprises of two drip irrigation systems with three irrigation levels viz., 75, 100 and 125% of pan evaporation (PE) from Class A Pan evaporimeter. Plant height, fresh cob length, girth, number of kernels per cob and single fresh cob weight and yield were higher at 125% PE in conventional in line drip irrigation system and it was statistically at par with drip irrigation at 125% PE in low cost drip tape irrigation system. Water saving was 36, 49 and 62% at 125, 100 and 75% PE, respectively under conventional in line drip irrigation system and drip tape irrigation system as against the surface irrigation. The cost of low cost drip tape system was 68% lower than the conventional inline drip system. The results of the research indicated that based on net income, B:C ratio and GM/TMV ratio, adoption of low cost drip tape irrigation system at 125% PE was found to be best for small and marginal farmers with substantial yield and income compared to conventional inline drip system.Bangladesh Agron. J. 2016 19(2): 71-77


Irriga ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 357-366
Author(s):  
Allan Remor Lopes ◽  
Marcio Antonio Vilas Boas ◽  
Felix Augusto Pazuch ◽  
Luciano Dalla Corte ◽  
Benedito Martins Gomes ◽  
...  

UNIFORMITY OF DRIP IRRIGATION SYSTEM WITH LIQUID PEAT ON DIFFERENT SLOPES     ALLAN REMOR LOPES1; MARCIO ANTONIO VILAS BOAS1; FELIX AUGUSTO PAZUCH1; LUCIANO DALLA CORTE1; BENEDITO MARTINS GOMES1; ROSEBEL TRINDADE CUNHA PRATES2   1 Programa de Pós-Graduação em Engenharia Agrícola (PGEAGRI) – Departamento de Recursos Hídricos e Saneamento Ambiental (RHESA), Universidade Estadual do Oeste do Paraná (UNIOESTE), Rua Universitária 2069, Jardim Universitário, CEP: 85819-110, Cascavel, Paraná, Brasil, [email protected]; [email protected]; [email protected]; [email protected]; [email protected] 2Centro de Ciências da Saúde, Universidade Estadual do Oeste do Paraná (UNIOESTE), Rodovia PR 182 Km 02, Francisco Beltrão, Paraná, Brasil, [email protected]     1 ABSTRACT   The use of liquid peat is an alternative to use of mineral fertigation However, it is necessary to monitor the uniformity of this organomineral fertilizer in order to obtain its adequate use, so the organomineral fertilizer can produce better quality crops. This study aimed to evaluate the uniformity of a drip fertigation system with liquid peats on different slopes. The experiment was carried out on a test bench, where the flow rate of the drippers was determined and subsequently its uniformity was calculated using the Christiansen uniformity coefficient (CUC) fot the treatments in level (0%), uphill (2%) and downhill (2%). The experimental statistics were performed by analysis of variance (ANOVA) and Tukey’s test at 5% probability to compare uniformity, in addition to the analysis of the process by Shewhart and CUSUM control charts. Liquid peat showed excellence in its uniformity (>90%) while used for drip irrigation systems. The liquid peat applied at the level slope was the most uniform, followed by upslope and downslope treatments, respectively. Through Shewhart and CUSUM control charts, it was possible to affirm that fertigation with liquid peat in level obtained a better performance.   Keywords: control chart, uniformity, organomineral fertilizer, microirrigation.     LOPES, A. R.; VILAS BOAS, M. A.; PAZUCH, F. A.; DALLA CORTE, L.; GOMES, B. M.; PRATES, R. T. C. UNIFORMIDADE DE SISTEMA DE IRRIGAÇÃO POR GOTEJAMENTO COM TURFA LÍQUIDA EM DIFERENTES INCLINAÇÕES     2 RESUMO   O uso da turfa líquida é uma alternativa ao uso da fertirrigação mineral. No entanto, é necessário o monitoramento da uniformidade deste fertilizante organomineral para obter seu uso adequado, assim o fertilizante organomineral pode produzir culturas de melhor qualidade. O objetivo deste estudo foi avaliar a uniformidade de um sistema de fertirrigação por gotejamento com turfa líquida em diferentes inclinações. O experimento foi conduzido em uma bancada de testes, onde a vazão dos gotejadores foi determinada e consequentemente sua uniformidade pelo Coeficiente de uniformidade de Christiansen (CUC) para os tratamentos em nível (0%), aclive (2%) e declive (2%). A estatística experimental foi determinada pela análise de variância (ANOVA) e teste de Tukey a 5% de probabilidade na comparação da uniformidade, complementando os gráficos de controle de Shewhart e CUSUM. A turfa líquida apresentou excelência na sua uniformidade (> 90%) em sistemas de irrigação por gotejamento. A turfa aplicada em nível (0%) foi a mais uniforme, seguido pelos tratamentos em aclive e declive, respectivamente. Através dos gráficos de controle de Shewhart e CUSUM foi possível afirmar que a fertirrigação em nível obteve uma melhor performance.   Palavras-chave: gráficos de controle, uniformidade, fertilizante organomineral, microirrigação.


1992 ◽  
Vol 2 (1) ◽  
pp. 25-27
Author(s):  
D.C. Sanders

The following should be considered when installing and maintaining a drip irrigation system for vegetable crops: water source (surface or ground water); water quality (salinity, particulate matter, contaminants); size of area to be irrigated; pump size; soil type; drip tape type; crop to be irrigated; management skill of the operator; automation needs; water meter and budget. Use a professional designer.


Author(s):  
Jerzy Jeznach

Some maintenance problems of the drip irrigation in Poland Drip irrigation system will play in the future a significant role in fulfilling the requirements of intensive, energysaving agricultural production. Total area under microirrigation in Poland can be now estimated as about 10 000 hectares. Drip irrigation is applied mainly in orchards, vegetable farms and greenhouses. The investigations on drip irrigation have shown a high infl uence of the agricultural conditions on the operation and reliability and productivity effects of the irrigation system. Paper present the investigation of the operation of drip irrigation systems in various regions of Poland. The analysis is based on the results of the manufacture coefficient of variation Cv, emitter exponent n, uniformity coefficient and detailed observation of the work time, breaks, failures and any other damages to the system.


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