Historical reference crop ET reliable for irrigation scheduling during summer
نویسندگان
چکیده
منابع مشابه
Crop Irrigation Scheduling via Simulation-Based Experimentation
Intraseasonal water allocation to a single crop has been studied extensively. Previous studies have emphasized the need to coordinate irrigation scheduling with several factors including economic and physical constraints, amount of soil moisture available at the time of irrigations, growth stage of the plant, interactive effects from previous and/or subsequent irrigation, and the effect, timing...
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Abstract The crop water stress index (CWSI) is a valuable tool for monitoring and quantifying water stress as well as for irrigation scheduling. A field experiment was conducted during spring and summer 2012 at Research Station of College of Agriculture and Natural Resources of Darab, Shiraz University, Iran, to determine CWSI of turfgrass for irrigation scheduling. Four levels of water regime...
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Although much of global agriculture is rain-fed, production is frequently (and sometimes catastrophically) constrained by rainfall. Supplementary irrigation can stabilize yield from year-to-year and conventionally has aimed to meet full crop evapotranspiration (ET), since the relationship between ET and crop yield is near-linear at suboptimal water supply (Fereres and Soriano, 2007). Changes in...
متن کاملResearch Aspects for Crop Salt Tolerance under Irrigation with Special Reference to Root Environment
Due to the lack of good quality water for human consumption and industry, in many countries irrigated agriculture is exposed to increasing pressure to expand the use of brackish and even high-saline waters for crop production. The application of lower quality waters requires special management practices, which are not yet fully understood with respect to optimization of plant growth on saline s...
متن کاملHistorical changes of temperature and vapor pressure deficit during the crop growing season in Iran
Climate change variables have rarely been analyzed specifically for the growing season of crops. In this study, changes in minimum (Tmin) and maximum temperature (Tmax), daily maximum saturated vapor pressure (VPsat) and estimated daily VPD weighted for transpiration (VPDtran) were examined at five locations in Iran over 40 years during the growing seasons of chickpea and maize. The results of ...
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ژورنال
عنوان ژورنال: California Agriculture
سال: 1999
ISSN: 0008-0845
DOI: 10.3733/ca.v053n04p32