نتایج جستجو برای: nitrogen and phosphorous in dry matter

تعداد نتایج: 21778750  

B.E. López Corona E.O. Rueda Puente F. Rodríguez Félix H. Celaya Michel J. Ortega-García J.M. Vargas López R.J. Holguin Peña U. Ramírez Campas

In the northwest of Mexico, a desert zone, new alternatives are required to satisfy the needs of food in goats; evidence indicate that feeding with Salicornia bigelovii forage, could be a contribution to goat obtaining system. Regarding to this halophyte, the information related to its use as a forage supplement in Sonora desert is very limited, specifically in goats. The goal of this ...

Journal: :علوم گیاهان زراعی ایران 0
علی نخ زری مقدم استادیار، گروه تولیدات گیاهی، دانشگاه گنبد کاووس غلامعلی نورا مدیر جهاد کشاورزی گنبد کاووس علی راحمی کاریزکی استادیار، گروه تولیدات گیاهی، دانشگاه گنبد کاووس

in order to study the effect of planting pattern and nitrogen application on barley and faba bean yield and quality of forage in intercropping, an experiment was conducted on farm of agricultural and natural resources faculty of gonbad kavous university as factorial based on rcbd with three replications in 2012-2013. planting pattern consisted of five levels, i.e. sole barley, intercropping of ...

Journal: :journal of rangeland science 2012
majid sadeghinia mohammad jafari ghavamodin zahedi amiri naser baghestani maybodi ali tavili

this research was conducted to investigate the relationships between soil(organic matter, potassium, phosphorous, sodium, fine gravel, soil texture, ec, lime,gypsum, nitrogen) and environmental (elevation, slope) factors with distribution ofvegetation types in rangelands of sabzdasht, located in bafgh, yazd province at 2012. forthis purpose, four vegetation types were selected as follows: artem...

سیدشریفی, رئوف , نعمتی, علیرضا ,

In order to investigate the effects of rates and nitrogen fertilizer application timing on yield and some growth physiological indices of corn ( Zea mays L.), an experiment was conducted as split plot based on randomized complete block design with three replications at the Research Farm of University of Mohaghegh Ardabili during 2009 cropping season. Nitrogen fertilizer levels were arranged in...

Published data on the effects of essential oils (EO) on in vivo nutrient digestibility in sheep are contradictory. In 2 experiments, the effect of thymol and carvacrol on nutrient digestibility was studied in sheep fed with high (70%) or low (52%) concentrate diets, using incomplete Latin Square designs. The essential oils were mixed with the concentrate portion of the diet at the rate of 0.0, ...

Journal: :علوم گیاهان زراعی ایران 0
سعید قنبرزاده محمدرضا چائی چی سید محمدباقر حسینی علیرضا طالعی

this experiment was conducted to evaluate the effects of different sowing densities and nitrogen fertilizer rates on quantitative and qualitative corn forage yield in an agroforestry system with orange trees. the treatments consisted of 4 nitrogen fertilizer levels of 0, 100, 200, and 300kg n/ha (allocated to main plots) and 4 sowing densities of 80000, 110000, 140000 and 170000 of corn seeds (...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1389

the quest for power has formed much of the world history especially in 20th and 21st centuries. oil (energy) particularly after industrial revolution has been a tool for conquest and power and has been transformed to a geopolitical issue. from a geopolitical point of view this has been the case for the last two centuries in central asia and caucasus. central asia and caucasus has always been...

امام, یحیی, رزمجو, جمشید, صداقت, مژده,

This experiment was conducted to determine the effects of time and rate of nitrogen fertilizer (urea) application on yield and yield components and quality of sunflower (Helianthus annuus L. )cv.Euroflor. A field experiment was carried out at College of Agriculture, Shiraz University during Summer 2009. The experimental design was a factorial based on a randomized complete block design with 3 ...

Journal: :به زراعی کشاورزی 0
پیمان شریفی استادیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد رشت، رشت ـ ایران یونس ایزدپناه دانشجوی کارشناسی ارشد، دانشگاه آزاد اسلامی، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، پردیس گیلان، واحد علوم و تحقیقات، رشت ـ ایران محمد نقی صفرزاد ویشکایی استادیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد رشت، رشت ـ ایران محمد آرش طهمورث پور دانشجوی کارشناسی ارشد، دانشگاه آزاد اسلامی، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، پردیس گیلان، واحد علوم و تحقیقات، رشت ـ ایران

a factorial experiment based on a randomized complete block design with three replications was carried out in order to study the effects of tuber size, nitrogen fertilizer and harvest date on yield and yield components of potato. this experiment was conducted in a grower’s farm in uraki village located in chabahar city, in 2011. in this experiment, the treatments were two levels of tuber size (...

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