نتایج جستجو برای: irrigated cropping
تعداد نتایج: 18623 فیلتر نتایج به سال:
The objective of this analysis was to integrate hydrologic, agronomic, and economic methods evaluate various management strategies by changing crop acreage better manage the declining resources Ogallala aquifer. A non-linear optimization model used estimate optimal water use, mix, yield, net returns over a 50 year period under dryland deficit irrigation scenarios in Texas High Plains. Results i...
Irrigation accounts for 70% of global water use by humans and 33–40% of global food production comes from irrigated croplands. Accurate and timely information related to global irrigation is therefore needed to manage increasingly scarce water resources and to improve food security in the face of yield gaps, climate change and extreme events such as droughts, floods, and heat waves. Unfortunate...
in this study, the optimization of energy consumption and reduction of greenhouse gas emissions of irrigated lentil production in esfahan province were conducted using data envelopment analysis (dea) method. the used data were collected randomly from 140 lentil producers using a face to face questionnaire method in the cropping season of 2014-2015. based on two dea models of constant returns to...
An assessment of the potential impact of climate change and the concurrent increase of atmospheric carbon dioxide (CO2) concentration on eastern Washington State agriculture was conducted. Climate projections from four selected general circulation models (GCM) were chosen to evaluate impacts for the periods 20102039, 2030-2059 and 2070-2099, identified as 2020, 2040, and 2080 scenarios, respect...
North China Plain is one of the most important agricultural regions in China with severe challenges of water shortage. Agriculture in the plain is very intensive. Farming in the region is a typical irrigation-supported system of winter wheat, followed by summer maize. Other important crops in the region include cotton, potatoes, soybean and various vegetables. Cultivation of these crops require...
Dwindling water resources have drawn global attention to the reuse of treated wastewater (TWW) for irrigation. However, impact continuous TWW applications on soil quality and proper quantification monitoring frameworks not been well-understood. This study aims provides an insight into flood irrigation urban nutritional-chemical attributes potential application multiple indices a corn cropping s...
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