نتایج جستجو برای: nitrogen application

تعداد نتایج: 873494  

In order to investigate the effect of chemical and biological nitrogen fertilizer on canola, a field experiment was conducted as a split plot based on a randomized complete block design with three replications at the research station of the Faculty of Agriculture, Yasouj University, located in Deshtrum region, in 2019. The main factor consisted of nitrogen fertilizer (zero, 25, 50, 75, 100 and ...

جلالی , امیرهوشنگ, صالحی, فرود ,

A two-year study (2007-2008) was carried out to explore the effect of split application of nitrogen fertilizer on yield, dry matter and harvest index of Marfona potato cultivar in Isfahan Agricultural Research Center, Iran. A randomized complete block design with a split plot arrangement with three replications was used. The main plots were three levels of nitrogen (100, 200 and 300 kg ha-1) an...

Journal: :تولید گیاهان زراعی 0
یعقوب حسینی استادیار مرکز تحقیقات کشاورزی و منابع طبیعی هرمزگان مهدی همایی استاد گروه خاکشناسی، دانشکده کشاورزی، دانشگاه تربیت مدرس صفورا اسدی کپورچال استادیار گروه علوم خاک، دانشکده علوم کشاورزی، دانشگاه گیلان

abstractbackground and objectives: in most saline and non-saline soils, nitrogen is the most restrictive nutrient for plant growth. in saline soils, interactive effects of salinity and soil fertility is very important from optimum production. nutrient imbalance is one of the problems with saline soils. in these circumstances, the fertilizer application may to increase osmotic effect of salt, th...

ژورنال: علوم آب و خاک 2007
زین العابدین طهماسبی سروستانی, , عبدالله بحرانی, ,

Understanding the nitrogen remobilization by plant, in order to obtain cultivars with higher quality, has specific importance in plant physiology. In this experiment, a bread and a durum wheat cultivar, were treated with different rates and times of nitrogen application, by using split factorial on the basis of randomized complete block design with three replications at Shiraz region during 200...

ژورنال: علوم آب و خاک 2012
محمد ربیعی, , مسعود کاوسی, , پری طوسی کهل, ,

To determine the proper nitrogen fertilizer rates and its application times for achieving high grain and oil yields of rapeseed cultivar, Hyola 401, a research was carried out in paddy fields of Rice Research Institute of Iran in Rasht during two cropping seasons. A factorial experiment was conducted in a completely randomized block design with three replications. The experimental factors w...

زین العابدین طهماسبی سروستانی, , عبدالله بحرانی, ,

Understanding the nitrogen remobilization by plant, in order to obtain cultivars with higher quality, has specific importance in plant physiology. In this experiment, a bread and a durum wheat cultivar, were treated with different rates and times of nitrogen application, by using split factorial on the basis of randomized complete block design with three replications at Shiraz region during 200...

Journal: :زراعت دیم ایران 0
ولی فیضی اصل عضو هیأت علمی موسسه تحقیقات کشاورزی دیم کشور و دانشجوی سابق دکتری خاکشناسی دانشگاه فردوسی امیر فتوت دانشیار گروه علوم خاک، دانشکده کشاورزی، دانشگاه فردوسی مشهد علیرضا آستارایی دانشیار گروه علوم خاک، دانشکده کشاورزی، دانشگاه فردوسی مشهد امیر لکزیان استاد گروه علوم خاک، دانشکده کشاورزی، دانشگاه فردوسی مشهد

understanding of wheat root system is important in dryland conditions. root development, important factor in wheat production under water limiting conditions, can be affected by environmental factors especially nitrogen fertilizer. a field experiment was carried out to study the nitrogen rates and application times on root morphology of three rainfed wheat genotypes, using a split-splitplot bas...

بهارلویی, سوسن, فلاح, سیف‌اله,

In order to investigate the effects of deficit nitrogen application on growth and yield in sole cropping and intercropping of canola and pea, a factorial experiment was conducted as randomized complete block design with three replications at Shahrekord University Research Farm, Sharekord, Iran during 2011- 2012 growing season. Five planting ratios (100% canola 66% canola + 33% pea, 50% canola +...

ژورنال: علوم آب و خاک 2008
مجد سلیمی, کوروش , میرلطیفی, سید مجید ,

In tea plantation regions of northern part of the country, application of supplemental irrigation during dry periods (lacking rainfalls) in conjuction with proper nitrogen fertilizer application can significantly improve tea yield per unit of plantation area. In order to quantify the effectiveness of proper irrigation and nitrogen management on tea, the response of tea to various levels of irri...

Journal: :international journal of advanced biological and biomedical research 0
elnaz azizzadeh m.sc. student in chemistry and soil fertility, department of soil sciences, gorgan university of agriculture sciences and natural resources gorgan, iran seyed ali reza movahedi naeini associate professor of department of soil sciences, gorgan university of agriculture sciences and natural resources gorgan, iran ebrahim zeinali associate professor of department of agronomy, gorgan university of agriculture sciences and natural resources gorgan, iran ghorban ali roshani assistant professor of gorgan institute for cotton research, gorgan, iran

this study was carried out in order to evaluate the changes of nitrogen, phosphor and potassium uptake by wheat and remaining of them in soil under foliar application of leonardite and foliar application of n and k. the experiment was conducted in gorgan university of agricultural sciences and natural resources during 2013- 2014. the experiment was laid out a using split-plot arrangement based ...

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