نتایج جستجو برای: crop water requirement
تعداد نتایج: 767512 فیلتر نتایج به سال:
Introduction Oilseeds after Cereals make up the second world food supply. Sesame is one of the oldest cultivated plants and possibly the world's oldest oil plants. Nowadays, sesame is used as a source of edible oil. Sesame home is warm and semi-warm areas, but its cultivation spread to temperate regions (Weise, 2000). To effectively and efficiently use the available water sources to me...
To investigate the effect of deficit irrigation on yield of mung bean genotypes, an experiment was conducted as a split plot in randomized complete block design (RCB) with three replications. The main plot was irrigation regime in three levels (supply of 100, 80 and 60% of crop water requirement) and subplot was genotype in five levels (VC 11-18b, VC 63-72, CN-9-5, NM 54 and 1-61-145). The resu...
Abstract In this technological era, several approaches used to provide the information about suitable crop recommendation means which is for soil. Some of depends on IoT smart agricultural-devices gather from surrounding area. However, collection data are predict crops details but it not efficient better performance. Therefore, proposed model uses various techniques improve performance efficien...
Water is one of the most important elements in this world. No life will exist without water. The main consumer water agriculture but due to mismanagement, overpopulation, and climatic changes valuable natural resource getting scarce position throughout It has become very define appropriate strategies for planning, development, management resources. objective paper estimation crop requirement Kh...
Many factors affecting irrigation model, including irrigation water volume, crop water requirement, production function of irrigation water, rainfall, soil water balance, water sensitive index in different stages of crop growth, the grain market price, irrigation water price, minimum yield, irrigation cost etc are considered. Then a multi-constraints and non-linear optimization irrigation model...
The world is facing severe challenges in meeting the rapidly growing demand for water resources. In addition,irrigation water which is the largest use of water in most developing countries and arid and semi arid regions, will likelyhave to be diverted increasingly to meet the needs of the households in urban areas and industry sectors whilst remaining aprime engine of agricultural growth. A Lin...
Using modern irrigation methods such as border irrigation is one way for an optimum usage of water. Potato, for this study, was cultured in a farm located at Kermanshah faculty of agriculture to evaluate the efficiency of border irrigation. The culture potato was the Agria variety and the applied treatment were 50, 75, and 100 percent of potato plant`s water requirement. Tapes were 12 m and the...
Limitations of rainfall and surface water resources farmers have to use both surface and subsurface resources for growing different crops. In this study optimal management of irrigation water allocation and cropping pattern utilizing conjunctive use of surface and subsurface water resources is studied. Also the effect of reducing water consumption in different growth stages with different irrig...
prediction of weed emergence timing would help minimize crop yield loss and reducing herbicide use by optimization of the timing of weed control. therefore, seedling emergence evaluation was conducted in different irrigation levels (40, 60, 80, 100 percent of crop water requirement and furrow irrigation) to develop a thermal time seedling emergence model for amaranthus retroflexus l. in sunflow...
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