نتایج جستجو برای: nitrogen use efficiency
تعداد نتایج: 2157301 فیلتر نتایج به سال:
چکیده ندارد.
performance, digestibility of nutrients, microbial nitrogen flow (mnf) and nitrogen efficiency (ne) inearly lactating holstein cows were investigated by diet supplementation with sodium caseinate (cn).multiparous lactating holstein cows (n = 15) with an average body weight of 638 kg and 21 days in milkwere assigned to a completely randomized design (five cows per treatment) and fed a basal diet...
introduction sunflower (helianthus annuus l.) is one of the most important oil crops in the world. iran is climatically regarded as an arid and semi-arid region in the world, where the lack of precipitation and its inappropriate distribution, high temperature and extensive evaporation makes the irrigation the main way for meeting plants water demand. hence, studying the effect of irrigation on ...
In this research, a comprehensive simulation model for water cycle and the nitrogen dynamics modeling including all the important processes involved in nitrogen transformations such as fertilizer dissolution, nitrification, denitrification, ammonium volatilization, mineralization, immobilization as well as all the important nitrogen transportation processes including nitrogen uptake by the plan...
In wheat production, improving resource utilization and grain yield is the goal researcher have been pursuing. This study aimed to investigate if a regulated nitrogen (N) selenium (Se) fertilizer management could increase N use efficiency (NUE). reports effects of three application levels (N0: 0 kg ha−1, N1: 180 N2: 270 ha−1) combination Se (Se0: g Se1: 450 Se2: 900 on metabolism, NUE in 2020–2...
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