irrigation supply Articles
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Modelling regional general equilibrium effects and irrigation in Canterbury
We describe the development of a regional computable general equilibrium (CGE) model for the analysis of issues concerning water supply and (re)allocation in Canterbury, New Zealand. Traditionally, water has been seen as an abundant resource, but growing irrigation demands are now outstripping the supply of water and competing with in-stream uses and non-use values. In the longer term, this ...
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Physiological interaction of soil moisture deficit and plant population on yield and yield components relationships of maize ( Zea mays L.)
Maize ( Zea mays L.) crops were grown at Coimbatore in the years 2009 and 2010 during the kharif season. The treatments imposed were three soil moisture levels: 100% irrigation water supply (0.8 IW/CPE ratio), 75% irrigation water supply (0.6 IW/CPE ratio) and 50% irrigation water supply (0.4 IW/CPE ratio). The plant density treatments adopted were normal spacing (60 × 20 cm), narrow ...
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Irrigation challenges in the sub-humid US Mid-South
Irrigated area in the Mid-South USA continues to increase and now totals four million ha. Because of low available water holding capacities and shallow root-limiting layers in many soils, irrigation management is difficult. Water quality and water use efficiency impacts under irrigation are poorly understood, but comprehension is necessary if conversion from groundwater to surface water supplies ...
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Turf Farm Irrigation Scheme - Case Study
Description: Irrigation of 100 hectares of turf for commercial sale. Location: Sunshine Coast SE QLD Scope:Turf Farm Irrigation Design supply installation and commissioning of pumping, pipeline and irrigation system including chemical injection for pH adjustment. Dual 30 kw electric pump sets with electrical control ,150mm PVC pipeline, Trailco 50 metre boom irrigator, ...
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An assessment of farmers' willingness to participate in water trading in southern Spain
This study applies contingent valuation to assess farmers' willingness to trade irrigation water. We analyse farmers' willingness to pay for water and their willingness to accept the selling of water through a seasonal market, under both normal rainfall and drought conditions. A survey of 241 farmers (irrigators and non-irrigators) in the Guadalquivir River Basin and in the ...
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Smart Irrigation Month Case Study
The City of Carmel, Ind., has partnered with irrigation professionals to promote efficient water use and green best practices. In June 2008, a coalition of irrigation experts — including six contractors, a designer and two distributors — met with water department officials to discuss how best to educate residents about solutions to save water and money. Irrigation Association members ...
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New Caledonia Irrigation System Stage 1 - Case Study
Project Details Construction Date September 2014 Location New Caledonia Categories: Pump System, Pipeline, Irrigation System Project Description Supply and install RM Irrigation low pressure irrigation system used for the irrigation of various vegetable crops. IRRIGATION PRODUCTS RM Irrigation hard hose travelling irrigator RM Irrigation Falcon low pressure boom. ...
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Impact of agricultural water reallocation on crop yield and revenue: a case study in China
Our study area in the People's Victory Canal Irrigation District of Henan Province in China has been transferring agricultural water to the city for municipal use. This study starts with an examination of the impacts of irrigation frequency, irrigation water sources, and irrigation water supply performance on crop yield and net crop revenue, using data from a survey of 182 households in the ...
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Behavior of atrazine in limited irrigation cropping systems in Colorado: prior use is important
Received for publication October 28, 2008. Glyphosate-resistant (GR) corn may be a major component of new cropping systems to optimize the use of limited irrigation water supply while sustaining production. Because atrazine is an important tool for residual weed control in GR corn, we examined atrazine binding to soil, dissipation, movement, and early season weed control in limited and full ...
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Plastic-Puglia: Watering your crops while saving resources
In summer, keeping a vegetable garden well watered means keeping an open tap like you haven’t seen since your last kegger in college. When the little rainfall in winter can make it seem like summer year-round, our finite resource such as water becomes ever more precious, in spite of the few rainstorms that did pass through in winter. Since the last few years, world has become ...
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New Caledonia Irrigation System Stage 2 - Case Study
Project Details Construction Date May 2015 Location New Caledonia Categories: Pump System, Pipeline, Irrigation System Project Description Supply and install two Reinke Centre Pivot irrigation systems used for the irrigation of various vegetable crops. IRRIGATION PRODUCTS High performance mobile diesel pump set capable of supplying water to both pivots simultaneously ...
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Behavior of atrazine in Limited Irrigation Cropping Systems in Colorado: Prior use is important
Glyphosate-resistant (GR) corn may be a major component of new cropping systems to optimize the use of limited irrigation water supply while sustaining production. Because atrazine is an important tool for residual weed control in GR corn, we examined atrazine binding to soil, dissipation, movement, and early season weed control in limited and full irrigation cropping systems. These systems ...
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Improving Irrigation in Browns Valley, California
In Northern California, the Browns Valley Irrigation District supplies water to hundreds of farmers. As this water source needs to supply many farmers in Northern California, accurate measurement is key as it ensures that farms are able to properly function and sustain the plants and/or livestock they have. The specific source of water that irrigates the fields in the Browns Valley District ...
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Improving Irrigation in Browns Valley, California
In Northern California, the Browns Valley Irrigation District supplies water to hundreds of farmers. As this water source needs to supply many farmers in Northern California, accurate measurement is key as it ensures that farms are able to properly function and sustain the plants and/or livestock they have. The specific source of water that irrigates the fields in the Browns Valley District ...
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Watermills in the historic irrigation system ‘Palmeral de Elche’, Spain: an example of early hydropower exploitation
With more than 180,000 date palms, the Palmeral de Elche is the largest palm grove in Europe. In 2000, United Nations Educational, Scientific and Cultural Organization (UNESCO) declared a part of it a World Heritage Site. Actually, the Palmeral is a historic irrigation system with rows of palm trees flanking rectangular fields and serving as a windbreak and shade for the cultivation of wheat, ...
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Long-term Polyacrylamide formulation effects on soil erosion, water infiltration, and yields of furrow-irrigated crops
Two formulations of water-soluble anionic polyacrylamide (WSPAM) are used in agriculture to reduce erosion and manage infiltration in furrow irrigations, although few if any reports have compared their effectiveness. A control and two WSPAMs, a granular form and the inverse emulsion, or oil-based liquid form, were applied to irrigation water supplied to furrows formed in a silt loam soil with ...
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Deficit irrigation optimization of cotton with aquacrop
Given the current pressures to reduce irrigation water use, it is important to optimize the use of water in irrigated agriculture. This work was aimed at determining the optimum level of applied irrigation water (AIW) for cotton (Gossypium hirsutum L.) production in southern Spain under several climatic and agricultural policy scenarios. To generate the yield response to variations in AIW, we ...
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Subsurface Drip Irrigation of Omaha Golf Course Fairways with Treated Effluent
ABSTRACT In 1999, in addition to the existing 825 lots developed in the 1970’s, a new 600-lot subdivision was commenced at Omaha Beach. Omaha Beach is a popular recreation beach community north of Auckland. In conjunction with the new residential development the existing 9-hole golf course was expanded to a full 18-hole course. The existing wastewater treatment and disposal infrastructure ...
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A hotter planet means less on our plates
In the Sunday November 22, 2009 issue of Outlook in the Washington Post, Lester Brown discusses the significant implications of food security in the upcoming Copenhagen Conference. As the U.N. climate-change conference in Copenhagen approaches, we are in a race between political tipping points and natural ones. Can we cut carbon emissions fast enough to keep the melting of the Greenland ice ...
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Technical coefficients of direct use of water in monetary terms for agriculture and urban water use
The San Francisco Integration Project is a Brazilian government project aiming to bring water to the semiarid region of the northeast. The project provides funding for two diversions of the San Francisco River, supplementing the supply of local water in four Brazilian states. The Piranhas-Açú and Jaguaribe basins will become the largest recipients of these water deliveries. In this paper, we ...
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