scholarly journals On farm evaluation of the effect of low cost drip irrigation on water and crop productivity compared to conventional surface irrigation system

2005 ◽  
Vol 30 (11-16) ◽  
pp. 783-791 ◽  
Author(s):  
N. Maisiri ◽  
A. Senzanje ◽  
J. Rockstrom ◽  
S.J. Twomlow
Keyword(s):  
Drip Irrigation ◽  
Irrigation System ◽  
Low Cost ◽  
Crop Productivity ◽  
Surface Irrigation ◽  
On Farm

scholarly journals Effect of Low Cost Drip Tape Irrigation System on Yield and Economics of Sweet Corn

2017 ◽  
Vol 19 (2) ◽  
pp. 71-77 ◽  
Author(s):  
HA Archana ◽  
N Asoka Raja ◽  
R Mahesh ◽  
R Kalpana
Keyword(s):  
Drip Irrigation ◽  
Sweet Corn ◽  
Irrigation System ◽  
Low Cost ◽  
Drip Irrigation System ◽  
Net Income ◽  
Surface Irrigation ◽  
Irrigation Systems ◽  
The Cost ◽  
Irrigation Levels

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

ON-FARM EVALUATION OF FERTILIZER BRIQUETTES AND LOW-COST DRIP IRRIGATION FOR SMALLHOLDER VEGETABLE PRODUCTION IN CAMBODIA

2010 ◽  
Vol 60 (3) ◽  
pp. 318-329 ◽  
Author(s):  
S. P. Bhattarai ◽  
M. C. Palada ◽  
D. J. Midmore ◽  
D. Wu ◽  
R. Salas
Keyword(s):  
Drip Irrigation ◽  
Low Cost ◽  
Vegetable Production ◽  
On Farm

scholarly journals PERDA DE CARGA EM FITAS GOTEJADORAS COM EMISSORES MOLDADOS

Irriga ◽  
2019 ◽  
Vol 1 (1) ◽  
pp. 86-93
Author(s):  
Verônica Gaspar Martins Leite de Melo ◽  
Leonardo Leite de Melo ◽  
José Antônio Frizzone ◽  
Antônio Pires de Camargo ◽  
Patricia Angélica Alves Marques
Keyword(s):  
Friction Factor ◽  
Drip Irrigation ◽  
Irrigation System ◽  
Low Cost ◽  
Pressure Head ◽  
Head Loss ◽  
Operating Pressure ◽  
Relative Errors ◽  
E Mail ◽  
Pipe Inlet

PERDA DE CARGA EM FITAS GOTEJADORAS COM EMISSORES MOLDADOS     VERÔNICA GASPAR MARTINS LEITE DE MELO1; LEONARDO LEITE DE MELO2; JOSÉ ANTÔNIO FRIZZONE3; antônio pires de camargo4 E patricia algélica alves marques5   1 Departamento de Engenharia de Sistemas Agrícola, ESALQ/USP, Av. Pádias, 11, São Dimas, CEP13418-900, Piracicaba, SP, Brasil, e-mail: [email protected] 2 Departamento de Engenharia de Sistemas Agrícola, ESALQ/USP, Av. Pádias, 11, São Dimas, CEP13418-900, Piracicaba, SP, Brasil, e-mail: [email protected] 3 Departamento de Engenharia de Sistemas Agrícola, ESALQ/USP, Av. Pádias, 11, São Dimas, CEP13418-900, Piracicaba, SP, Brasil, e-mail: [email protected] 4 Faculdade de Engenharia Agrícola – UNICAMP, Av. Cândido Rondon, 501, Cidade Universitária, CEP 13083 - 875, Campinas, SP, e-mail: [email protected] 5 Departamento de Engenharia de Sistemas Agrícola, ESALQ/USP, Av. Pádias, 11, São Dimas, CEP13418-900, Piracicaba, SP, Brasil, e-mail: [email protected]     1 RESUMO   Embora as fitas gotejadoras sejam de baixo custo, é importante que esse material seja avaliado hidraulicamente para prover informações técnicas. O objetivo deste trabalho foi analisar a perda contínua de carga e o fator de atrito em uma fita gotejadora com emissor moldado em seu interior. O experimento foi conduzido no laboratório de irrigação da ESALQ/USP. Utilizou-se a fita gotejadora Rain-Tape® fabricada pela Rain Bird®, espessura de parede de 225 µm e emissores tipo labirinto, espaçados de 0,30 m, vazão nominal de 1 L h-1 e pressão de serviço de 55 kPa. A equação de perda de carga para regime de escoamento turbulento liso em função da vazão e da carga de pressão na entrada da fita apresenta boa habilidade para estimar a perda de carga em fitas gotejadoras com emissores moldados, sendo que 95% das estimativas apresentaram erro relativo de até 6,71%. A equação de Darcy-Weisbach pode ser utilizada para o cálculo da perda de carga desde que o diâmetro seja substituído por uma função da pressão de entrada. Para o cálculo da perda de carga, utilizando a equação de Darcy-Weisbach, o fator de atrito calculado pela equação de Blasius deve considerar um coeficiente a = 0,3408.   Palavras-chave: irrigação por gotejamento, perda de carga por atrito, fator de atrito     MELO, V. G. M. L. de; MELO, L. M. de; FRIZZONE, J. A.; CAMARGO, A. P. de; MARQUES, P. A. A. HEAD LOSS IN DRIP TAPES WITH MOLDED EMITTERS     2 ABSTRACT   Although drip tapes are low-cost equipment, proper hydraulic evaluation is important to provide information required for irrigation system design. The aim of this study was to analyze the friction head loss and the friction factor in drip tapes with molded emitters, that are employed in drip irrigation systems. Experiments evaluated the drip tape model Rain-Tape®, manufactured by Rain Bird, 225-µm wall thickness, labyrinth-type emitters, 0.30-m emitters spacing, 1 L h-1 nominal discharge and operating pressure of 55 kPa. The following conclusions were obtained: (a) the equation of head loss for smooth turbulent flow as a function of flow rate and pressure head at the pipe inlet provided good predictions of head loss in drip tapes with molded emitters, since 95% of predictions presented relative errors less than 6.71%; (b) the Darcy-Weisbach equation may be used for calculating head loss, but the pipe diameter must be replaced by a function considering the lateral inlet pressure; (c) for calculating head loss of the Rain-Tape using the Darcy-Weisbach equation, the friction factor obtained by the Blasius equation should use the coefficient a = 0.3408.   Keywords: drip irrigation, frictional head loss, friction coefficient

scholarly journals Re-designing irrigated intensive cereal systems through bundling precision agronomic innovations for transitioning towards agricultural sustainability in North-West India

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
H. S. Jat ◽  
P. C. Sharma ◽  
Ashim Datta ◽  
Madhu Choudhary ◽  
S. K. Kakraliya ◽  
...  
Keyword(s):  
Irrigation Water ◽  
Drip Irrigation ◽  
Irrigation System ◽  
Water Productivity ◽  
Crop Productivity ◽  
Drip Irrigation System ◽  
Flood Irrigation ◽  
Energy Productivity ◽  
North West ◽  
Surface Drip Irrigation

AbstractA study was conducted to design productive, profitable, irrigation water¸ nitrogen and energy use efficient intensive cereal systems (rice-wheat; RW and maize-wheat; MW) in North-West India. Bundling of conservation agriculture (CA) with sub-surface drip irrigation termed as CA+ were compared with CA alone and conventional tillage based and flood irrigated RW rotation (farmer’s practice; ScI). In contrast to conventional till RW rotation which consumed 1889 mm ha−1 irrigation water (2-yr mean), CA+ system saved 58.4 and 95.5% irrigation water in RW and MW rotations, respectively. CA+ practices saved 45.8 and 22.7% of irrigation water in rice and maize, respectively compared to CA with flood irrigation. On a system basis, CA+ practices saved 46.7 and 44.7% irrigation water under RW (ScV) and MW (ScVI) systems compared to their respective CA-based systems with flood irrigation (ScIII and ScIV). CA+ in RW system recorded 11.2% higher crop productivity and improved irrigation water productivity by 145% and profitability by 29.2% compared to farmers’ practice. Substitution of rice with maize (MW system; ScVI) recorded 19.7% higher productivity, saved 84.5% of irrigation water and increased net returns by 48.9% compared to farmer’s practice. CA+ RW and MW system improved energy productivity by 75 and 169% and partial factor productivity of N by 44.6 and 49.6%, respectively compared to ScI. The sub-surface drip irrigation system saved the fertilizer N by 20% under CA systems. CA+ in RW and MW systems recorded ~13 and 5% (2-yr mean) higher profitability with 80% subsidy on installing sub-surface drip irrigation system and similar profitability without subsidy scenario compared with their respective flood irrigated CA-based systems.

Development of a Low-cost Drip Irrigation System

2019 ◽  
pp. 1-8
Author(s):  
O. Lasisi ◽  
O. D. Isinkaye ◽  
B. O. Fati
Keyword(s):  
Drip Irrigation ◽  
Root Zone ◽  
Irrigation System ◽  
Low Cost ◽  
Food Crops ◽  
Drip Irrigation System ◽  
Retention Capacity ◽  
Medium Scale ◽  
Problematic Soils ◽  
Runoff Losses

The localized irrigation is the artificial application of water to the root zone of plants for the purpose of supplying the essential moisture requirement for plant growth. The system makes the production and availability of food crops, citrus and vegetables possible throughout the year on small and medium scale basis at an affordable cost. In places and periods of water scarcity, low-cost drip irrigation can be used for the economic growing of vegetables, citrus and food crops all –round the year. This paper aimed at developing a low-cost drip irrigation system to empower the small and medium scale farmers to produce crops during offseason at minimum operational cost with less human efforts. The field area of 126.4 m2 was properly cleared, stumped, ploughed, harrowed and leveled. The leveling was carried out to allow unobstructed flow and evenly distribution of water to the root of plants. The system does not only reduce water loss but also conserve water during the period of scarcity. The controlled moisture available to the plant at low soil tension results in faster growth, higher yields, better quality and more environmentally and health friendly. The system improves the penetration of water into problematic soils and reduces substantially deep percolation and runoff losses. The system also saves water, money, time and makes provision for all- season farming. The topography of the field was flat with its suitable soil texture, texture, retention capacity and pump for this work was designed and selected to be 1 hp. The system was developed using a simple principle of water flow through gravity to drip out water at regulated interval to irrigate farmland. The drum has 214 litres capacity and 121 emitters. The total cost of production was estimated to be ₦50, 790 which is affordable by small and medium scale farmers.

scholarly journals Low Cost Design of Automated Drip Irrigation System with GSM

2019 ◽  
Vol 8 (4) ◽  
pp. 8077-8082
Keyword(s):  
Control System ◽  
Drip Irrigation ◽  
Irrigation System ◽  
Low Cost ◽  
Cost Effective ◽  
Effective Control ◽  
Irrigation Technology ◽  
Flow Through ◽  
Irrigation Control ◽  
Fail Safe

This paper is about an automatic irrigation control system which is cost effective and can be used for irrigation by a farmer. Today’s industrial automation and controlling of machine is high in cost and not suitable for a farming field. So, here we design a smart drip irrigation technology with effective control system in low cost. The voltage monitoring unit informs the farmer about the power supply conditions on the field. The aim of this study, is to control the motor automatically, and decide the direction of the water flow through valves, based on the inputs from the farmer and also with the collective inputs from the sensors, which finally notify instantly about the happenings and conditions of the field. It operates under low hardware cost by distributing irrigation to crops by elevation change and gravity. The soil moisture and amount of flow of water in each sector are major consideration to design a fail-safe system for a variety of crops planted at a time.

scholarly journals How to Conduct an On-farm Dye Test and Use the Results to Improve Drip Irrigation Management in Vegetable Production

EDIS ◽  
1969 ◽  
Vol 2004 (10) ◽  
Author(s):  
Eric Simonne ◽  
David Studstill ◽  
Michael Dukes ◽  
John Duval ◽  
Robert Hochmuth ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Water Movement ◽  
Root Zone ◽  
Irrigation System ◽  
Irrigation Management ◽  
Irrigation Scheduling ◽  
Production Costs ◽  
Publication Date ◽  
Vegetable Production ◽  
On Farm

Improving irrigation management in vegetable crop production reduces production costs, saves water, and reduces the risk of nutrient leaching. As water movement in the root zone below mulched beds is difficult to see, injecting soluble dye through the drip irrigation system provides a simple and practical method to visualize water movement in the soil. Understanding water movement in raised beds is essential for improving irrigation scheduling and nutrient delivery. This document is HS980 one of a series of the Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication date: July 2004. HS980/HS222: How to Conduct an On-Farm Dye Test and Use the Results to Improve Drip Irrigation Management in Vegetable Production (ufl.edu)

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