نتایج جستجو برای: nitrogen form

تعداد نتایج: 805103  

Journal: :journal of agricultural science and technology 2016
s. l. zheng h. cheng p. h. li j. c. yuan

in the present study, the root vigor and kinetic characteristics of nitrogen absorption in potato cultivars was investigated through sand cultivation and pot tests with nutrient solution. four cultivars of potatoes, namely, feiwuruita, yunshu301, liangshu97, and chuanyu56 were grown in nutrient solution matrix cultures. the result showed that: (1) nitrogen uptake rates differed significantly am...

Journal: :Matica Srpska Journal for Natural Sciences 2004

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1387

boron nitride semiconducting zigzag swcnt, $b_{cb}$$n_{cn}$$c_{1-cb-cn}$, as a potential candidate for making nanoelectronic devices was examined. in contrast to the previous dft calculations, wherein just one boron and nitrogen doping configuration have been considered, here for the average over all possible configurations, density of states (dos) was calculated in terms of boron and nitrogen ...

Journal: :پژوهش های زراعی ایران 0
رقیه سادات حسینی سراله گاشی افشین سلطانی مهدی کلاته محبوبه زاهد

in order to investigate the effects of different levels of nitrogen rate on yield and seed yield components of wheat cultivars, an experiment was conducted on araghi mahalleh (gorogan) research farm in 2008. treatments, nitrogen in the form of urea (0, 90, 180 and 270 kg/ha) and cultivars (tajan, falat and n81-18) were arranged as factorial based on randomized complete block design with four re...

Journal: :East African Journal of Agriculture and Biotechnology 2020

Journal: :Journal of the Japanese Society for Horticultural Science 1982

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