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The variability of fresh water availability in arid and semi-arid countries poses a serious challenge to farmers to cope with when depending on irrigation for crop growing. This has shifted the focus onto improving irrigation management and water productivity (WP) through controlled deficit...
Persistent link: https://www.econbiz.de/10010997327
Bangladesh has a large and growing population that will demand more food and place greater pressure on resources. Dry season irrigated Boro rice production is important for national food security. Dry season irrigation mainly uses groundwater, but the extent of its use is not well known. We...
Persistent link: https://www.econbiz.de/10010997580
Realistic estimation of irrigation volume applied to any crop at farm level generally requires information on event based discharge rates and corresponding periods of irrigation application. Use of mean seasonal discharge rates leads to erroneous estimation of volume due to unaccounted seasonal...
Persistent link: https://www.econbiz.de/10010997592
For a certain overall deficit target, this paper develops a methodology (Optimized Regulated Deficit Irrigation (ORDI)) for determining the stress level (in terms of the rate between actual crop evapotranspiration (ETa) and maximum evapotranspiration (ETm)) that can be applied to each growth...
Persistent link: https://www.econbiz.de/10011047583
Availability of fresh water is one of the elementary conditions for life on Earth, however, water is a limited resource, which is now under an unprecedented pressure by global population growth, climate change and demand from several economic sectors such as tourism, industry, and agriculture....
Persistent link: https://www.econbiz.de/10011047587
Field studies were conducted to determine the response of processing tomato (Lycopersicon esculentum Mill.) to deficit irrigation (DI) to guide programs for the development of improved irrigation management practices for sub-humid zones. Field experiments were conducted in Bursa province,...
Persistent link: https://www.econbiz.de/10011047596
Yield, cost, and revenue functions of potato (cv. Agria) were developed from field experiments in 2007–2008, which were designed to determine the response of tuber yield to no irrigation for two weeks at tuber bulking (TB) and tuber ripening (TR). Deficit-irrigated treatments were compared to...
Persistent link: https://www.econbiz.de/10011047616
Several maize field experiments, including deficit and full irrigation, were used to assess irrigation impacts on yields. The SIMDualKc water balance model was first calibrated and validated to obtain the basal crop coefficients (Kcb) and the depletion fractions for no stress (p) relative to all...
Persistent link: https://www.econbiz.de/10011047624
Selecting proper planting density can optimize light interception and increase crop water productivity. This research investigated the planting density effect on the evapotranspiration (ETc) and yield of greenhouse grown tomato in northwest China during December 2010 to June 2011 (first season),...
Persistent link: https://www.econbiz.de/10011047712
A two-year field experiment was conducted with drip irrigation and plastic mulch to investigate an appropriate irrigation management strategy for chili pepper (Capsicum annuum L.). Five treatments, with the soil matric potential (SMP) threshold range of −10 to −50kPa at intervals of 10kPa,...
Persistent link: https://www.econbiz.de/10011047719