نتایج جستجو برای: nitrogen components
تعداد نتایج: 503936 فیلتر نتایج به سال:
Rapeseed (Brassica napus L.) is a major oil crop in China, with the world’s largest planted area and total yield. has high demand for nitrogen (N), deficiency soil an important limiting factor rapeseed production. However, responds to N deprivation by regulating its own morphology, structure, physiology. We carried out current experiment utilizing low (LN: 0.3 mM NO3?) normal (CK: 6.0 treatment...
background and objectives: soybean is one of the plants that need large amounts of nitrogen for grain yield production. todays bio-fertilizers are considered as a best replacement for chemical nitrogen to increase soil fertility and sustained agricultural production. meanwhile, the use of soybean symbiotic bacteria and nitroxin, which contain the most effective nitrogen-fixing bacteria of the g...
Urban development and air pollution are among the most important issues related to climate. The expansion of urbanization and urban development, population growth, industrial development and excessive use of fossil fuels significantly increased air pollution and it is more than the capacity of the environment. In our country, the emissions of air pollutants in some metropolitan areas have reach...
In order to investigate the effects of different nitrogen fertilizer levels and water stress during milky and dough stages on grain yield, yield components and water use efficiency of corn hybrid SC 704 (late maturing, non prolific and dent type), a field study was conducted. The factorial design of the study comprised of a randomized complete block with four replications. Four levels of nitro...
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