نتایج جستجو برای: irrigation regimes
تعداد نتایج: 82777 فیلتر نتایج به سال:
Yield-loss models were developed for tobacco infected with Meloidogyne incognita grown in microplots under various irrigation regimes. The rate of relative yield loss per initial nematode density (Pi), where relative yield is a proportion of the value of the harvested leaves in uninfected plants with the same irrigation treatment, was greater under conditions of water stress or with high irriga...
in order to investigate the effect of insufficient irrigation on remobilization percent and plant dry mater in three spring safflower (cartamus tinctorius l.) genotypes, a field experiment was conducted at research farm, faculty of agriculture, the university of birjand, iran, during 2008-2009, as a spilt plot arrangement based on randomized complete block design with four replications. irrigat...
To evaluate the effect of chitosan NPs on wheat under late season drought stress, a factorial experiment was performed based on a randomized complete block design in three replications in pot conditions at Tarbiat Modares University in 2015. The experimental factors included the NPs concentrations (0, 30, 60 and 90 mg.L-1), application methods (foliar and soil application) and irrigation regime...
Better irrigation management and more efficient management of crop production require modeling of plant growth and crop yield. More applicable models are usually simple and requires less and accessible inputs. The objective of this study was to develop a model for growth and yield prediction of saffron under various irrigation regimes. In this modeling soil water budget and other simple rel...
Purpose Water management affects the bioavailability of cadmium (Cd) and arsenic (As) in the soil and hence their accumulation in rice grains and grain yields. However, Cd and As show opposite responses to soil water content, but information, particularly on irrigation, is missing on a field scale. The purpose of the present study was therefore to find a water management regime that can lower a...
An experiment was conducted to evaluate the effects of different levels of nitrogen and irrigation on yield and yield components of safflower. Three nitrogen rates (0, 50 and 100 kg ha-1) under three irrigation levels (100% as control 80% as mild limited irrigation, and 60% of crop water requirement as severe limited irrigation) were investigated using a factorial laid out in a randomized comp...
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...
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