نتایج جستجو برای: keywords deficit irrigation scheduling
تعداد نتایج: 2131346 فیلتر نتایج به سال:
In order to evaluate the effect of water deficit at different growth stages on yield and yield components of two cultivars of safflower, a study was conducted during 2009 and 2010 growing seasons at Research Farm of College of Agriculture, Shiraz University, Shiraz, Iran. The treatments were cultivar at two levels (Sina and Local Isfahan) as the main factor, irrigation regime at four levels (40...
sustainable agriculture for producing food is not possible without optimal use of water resources. because of the limitation of water resources, deficit irrigation would be essential to increase water productivity. in order to evaluate the effects of deficit irrigation on quality and quantity of sugar beet, an experiment was carried out in a farm in miandoab agricultural research station for 2 ...
In order to study the effects of foliar application of phosphorus (P) and water deficit on yield and yield components of winter wheat (Triticum aestivum L., cv. Alvand), a split-plot experiment, with completely randomized blocks design and three replications, was carried out at the Research Farm of Boyer Ahmad Agricultural and Natural Resources Research Station, 13 km west of Yasouj, in 2008-20...
Environmental stresses such as deficit irrigation and ultraviolet radiation can influence plant growth and development. Among the environmental variables, ultraviolet radiation is an important factor in plant response to other stresses, such as deficit irrigation. The purpose of this study was to investigate the effects of ultraviolet B radiation (UV-B), irrigation stress and combined effects o...
Regarding the insufficient water resources, developing of cultivars with high tolerance to water deficit can be very effective to optimize water consumption. To identify maize hybrids with higher tolerance to water deficit, 52 single cross hybrids were field evaluated according to a randomized complete block design with three replications in each irrigation regime. The hybrids were produced thr...
Land and water are two major inputs for crop production. Simulation modelling was used to determine sequences that maximise farm return. Crop yield determined different irrigation scheduling scenarios based on the fraction of available soil (FASW). Farm returns ($ ML−1 $ ha−1) were evaluated seven sequences. Three price (dry, median, wet) considered. The summer crops increased with irrigation. ...
Irrigation helps grow agricultural crops in dry areas and during periods of inadequate rainfall. Proper irrigation could improve both crop productivity produce quality. For high density apple orchards, water relations are even more important. Most tree fruit orchards is applied based on grower’s experience or simple observations, which may lead to over- under-irrigation. To investigate an effec...
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