نتایج جستجو برای: 50 (n50) and 75 (n75) kg ha

تعداد نتایج: 16926236  

2017
Zhijia Gai Jingtao Zhang Caifeng Li

The objective of this study was to examine the impact of starter nitrogen fertilizer on soybean root activity, leaf photosynthesis, grain yield and their relationship. To achieve this objective, field experiments were conducted in 2013 and 2014, using a randomized complete block design, with three replications. Nitrogen was applied at planting at rates of 0, 25, 50, and 75 kg N ha-1. In both ye...

Journal: :علوم گیاهان زراعی ایران 0
فرج¬اله نارکی بهروز واعظی وحید باوی

to estimate the optimum and effective amount of nitrogen fertilizer for quantity and quality improvement of three new durum wheat lines, this research was conducted in gachsaran dry-land agricultural research station for a duration of 4 years (2003-2007). the study was performed as a factorial expriment, using a randomized complete block design with 4 replications. two factors of: 4 nitrogen ra...

Journal: :International Journal of Plant and Soil Science 2023

In North West India ground water is depleting because of adoption rice-wheat system. Therefore for saving precious resources there need to diversify some area under low requiring crops and adopt techniques. A field experiment was conducted evaluate individual interactive effects deep tillage, irrigation nitrogen rates on yield productivity canola (Brassica napus). Experimental treatments in mai...

ژورنال: علوم آب و خاک 2008
اسکندری, ذبیح ا... , خداقلی, مرتضی , سعیدفر, مصطفی , چاووشی , ستار ,

The effect of nitrogen and phosphorous fertilization on range species production was studied using factor combination method as factorial with 3 blocks and 12 treatments. Nitrogen in 4 levels of 0،25،50 and 75 kg N/ha and phosphorus in 3 rates of 0،30 and 60 kg N/ha were used. Results indicated no significant difference between nitrogen rates in different growth forms of grass, bush and Eurotia...

اسکندری, ذبیح ا... , خداقلی, مرتضی , سعیدفر, مصطفی , چاووشی , ستار ,

The effect of nitrogen and phosphorous fertilization on range species production was studied using factor combination method as factorial with 3 blocks and 12 treatments. Nitrogen in 4 levels of 0،25،50 and 75 kg N/ha and phosphorus in 3 rates of 0،30 and 60 kg N/ha were used. Results indicated no significant difference between nitrogen rates in different growth forms of grass, bush and Eurotia...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده کشاورزی 1389

بادرشبی با نام علمی dracocephalummoldavica، گیاهی است نهاندانه، دولپه ای، پیوسته گلبرگ، از تیره نعناع. اسانس بادرشبی در صنایع داروسازی، آرایشی و بهداشتی، غذایی و عطر سازی کاربرد های فراوان دارد. به منظور بررسی اثر تیمار های کودی مختلف بر عملکرد و اسانس گیاه بادرشبی، این تحقیق در قالب طرح بلوک کامل تصادفی با سه تکرار انجام گرفت. تیمار ها شامل 1: شاهد. 2: (t/ha 100کود دامی). 3: (t/ha 50کود دامی +...

2013
Yating He Yuchun Qi Yunshe Dong Shengsheng Xiao Qin Peng Xinchao Liu Liangjie Sun

Nitrogen (N) fertilization may profoundly affect soil microbial communities. In this study, a field fertilization experiment was conducted in temperate grassland in Inner Mongolia, China to examine the effect of N fertilization on soil microbial properties and the main factors related to the characteristics of soil microbial community. Soil microbial biomass carbon (MBC) and microbial functiona...

2013
K. Pramanik A. K. Bera

A field experiment was conducted during kharif season of 2010 and 2011 to investigate the optimization of nitrogen levels under different age of seedlings transplanted on growth, chlorophyll content, yield and economics of hybrid rice. Fifteen treatment combinations consisted of three levels of seedlings age (10, 20 and 30 days) and five levels of nitrogen viz. N0, N50, N100, N150 and N200 kg h...

G.R. Mohsenabadi J. Aminifar M. Galavi M. Ramroudi

ABSTRACT- Declining land productivity associated with decreasing soil organic carbon and nutrients is a significant issue in monoculture production. The field experiment with different rates of fertilizer systems (60 kg ha-1 N + 100 kg ha-1 P, 300 kg ha-1 Bio-organic (organic fertilizer), 3 kg ha-1 Bioumik (biofertilizer), 30 kg ha-1  N + 50 kg ha-1 P + 150 kg ha-1 Bio-organic fertilizer and 30...

Journal: :Sustainability 2021

Sound irrigation and nitrogen management strategies are necessary to achieve sustainable yield water use efficiency of winter wheat in the North China Plain (NCP). The coupled effects scheduling application mode (NAM) on growth, under drip were evaluated with a two-year field experiment, which consisted three levels (ISLs) (irrigating when soil consumption (SWC) reached 20, 35 50 mm, referred a...

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