نتایج جستجو برای: nitrogen agronomic efficiency

تعداد نتایج: 506057  

Journal: :بوم شناسی کشاورزی 0
مصطفی جعفریانی سید علیرضا بهشتی قدیر طاهری

yield increase of crop along with human health and environment persistence could obtain from correct use of nitrogen fertilizer. in this study the effect of different regime n application on n efficiency grain sorghum genotypes in 2009 growing season at the khorasan razavi agriculture natural resources research center mashhad was investigated. split plots experiment in base of randomized comple...

Journal: :پژوهش های کاربردی زراعی (زراعت سابق) 0
شهرام کیانی استادیار گروه خاکشناسی دانشکده کشاورزی دانشگاه شهرکرد علیرضا حسین پور دانشیار گروه خاکشناسی دانشکده کشاورزی دانشگاه شهرکرد رامین ایرانی پور عضو هیات علمی بخش تحقیقات خاک و آب مرکز تحقیقات کشاورزی و منابع طبیعی استان چهارمحال و بختیاری

low nitrogen (n) use efficiency is considered to be one of the major problems in wheat production fields all over the world. this experiment was conducted to evaluate the effects of nitrification inhibitor (ni) 3, 4- dimethylpyrazole phosphate (dmpp) on the yield and nitrogen use efficiency of spring wheat (triticum aestivum l.) cv. bahar during 2011 at shahrekord university. a factorial experi...

Journal: :Archives of Agronomy and Soil Science 2022

The objectives were to i) assess the effect of enhanced-efficiency nitrogen (N) fertilizers (EENF) [maleic itaconic acid copolymer (NSN) or 3,4-dimethylpyrazole phosphate (DMPP)] and urea on potato (Solanum tuberosum L.) tuber yield, N agronomic efficiency (NAE), recovery in (NREtuber) plant (NREplant), physiological efficiency, residual inorganic soil at harvest (Nresidual) losses (Nlosses) ii...

2016
Hazzar Habbib Julien Verzeaux Elodie Nivelle David Roger Jérôme Lacoux Manuella Catterou Bertrand Hirel Frédéric Dubois Thierry Tétu

A two-year experiment was conducted in the field to measure the combined impact of tilling and N fertilization on various agronomic traits related to nitrogen (N) use efficiency and to grain yield in maize cultivated in the presence of a cover crop. Four years after conversion to no-till, a significant increase in N use efficiency N harvest index, N remobilization and N remobilization efficienc...

Journal: :Journal of experimental botany 2007
Bertrand Hirel Jacques Le Gouis Bertrand Ney André Gallais

In this review, recent developments and future prospects of obtaining a better understanding of the regulation of nitrogen use efficiency in the main crop species cultivated in the world are presented. In these crops, an increased knowledge of the regulatory mechanisms controlling plant nitrogen economy is vital for improving nitrogen use efficiency and for reducing excessive input of fertilize...

Etty Safriyani, Firdaus Sulaiman Holidi Holidi Kartika Kartika Mery Hasmeda Munandar Munandar

Nitrogen is essential for both vegetative and generative stages of plant growth. Nitrogen efficiency is related to plant growth, production cost, and fertilizer residue. Azolla has the ability to increase nitrogen fixation from the atmosphere. Thus, Azolla cultivation in paddy field is one strategy for improving nitrogen fertilizer efficiency and increasing plant vegetative and generative growt...

Journal: :علوم گیاهان زراعی ایران 0
محمدحسین سدری مربی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی کردستان و دانشجوی دکتری، گروه علوم خاک، دانشکدۀ کشاورزی، دانشگاه زنجان احمد گلچین استاد، گروه خاکشناسی، دانشکدۀ کشاورزی، دانشگاه زنجان ولی فیضی اصل استادیار، مؤسسۀ تحقیقات کشاورزی دیم کشور عادل سی و سه مرده دانشیار، گروه زراعت، دانشکدۀ کشاورزی، دانشگاه کردستان

in order to study the effects of rate and application time of nitrogen on grain yield of rainfed wheat, water use efficiency of rain (wue), nitrogen agronomic efficiency (nae) and soil moisture depletion (smd), one experimental farm was carried out in kurdistan province during 2012-2014. tratments were five rates of nitrogen (n0, n30, n60, n90 and n120) kg.ha-1 as urea with three application ti...

Journal: :پژوهش های کاربردی زراعی (زراعت سابق) 0
امیرهوشنگ جلالی مرکز تحقیقات کشاورزی و منابع طبیعی استان اصفهان محمد جعفر بحرانی استاد بخش زراعت و اصلاح نباتات دانشکده کشاورزی دانشگاه شیراز

nitrogen is one of the most limiting nutrients for cereal production in many parts of iran. the effects of crop residue incorporation [0 (control), 25 and 50% of wheat (triticum aestivum l.)] and nitrogen (n) levels (0, 150, and 300 kg ha-1) on corn (zea mays l.) grain yield and nitrogen use efficiency were investigated at agricultural research station, shiraz university, shiraz, iran for two y...

Journal: :پژوهش های زراعی ایران 0
جواد حمزه ئی حمید نجفی مجید بابایی

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 ...

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