irrigation water supply Articles
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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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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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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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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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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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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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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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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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Detecting salinity stress in crops
Salinity inhibits growth and development in crops. Due to the extent of damage salinity causes to agriculture, it is identified as a major threat to food production. Therefore, practices to deal with the effects of salinity on crops are receiving a lot of attention. To be able to provide proper recommendations that are also sustainable, it is first necessary to find out how salinity affects ...
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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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Optimizing Agricultural Water Management through Water Quality Sensors
Water is a precious resource that plays a critical role in agricultural production. As the global population increases, meeting the demand for food and fiber becomes increasingly challenging, particularly in regions facing water scarcity. The utilization of water in agriculture must be efficient, sustainable, and environmentally friendly. This article explores how water quality sensors have ...
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Delta Drainage and Irrigation System - Case Study
Background Delta, British Columbia is located in the Fraser River delta on the shores of the Pacific Ocean, just south of the City of Vancouver. Delta comprises mostly agricultural land, with typical ground elevations near sea level. Levees protect the area from potential floods from the Fraser River and tidal surges from the Pacific Ocean. Of the 13,500 hectares (ha) watershed, 6,300 ha is ...
By Innovyze
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Irrigating with reclaimed water through permanent subsurface drip irrigation systems
ABSTRACT In Hawaii, reclaimed water has been used in agricultural irrigation and the irrigation of golf courses and other large landscaped areas. However, the Hawaii Department of Health's new "Guidelines for the Treatment and Use of Reclaimed Water" published in November 1993, limits uses of reclaimed water through overhead sprinkler irrigation systems. The subsurface drip irrigation concept ...
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