نتایج جستجو برای: production index

تعداد نتایج: 985712  

Journal: :کشاورزی (منتشر نمی شود) 0
اسماعیل فلاحی کارشناس ارشد، گروه اقتصاد کشاورزی، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران امیرحسین چیذری استادیار، گروه اقتصاد کشاورزی، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران

the comparative advantage of iran kiwi production and the effects of governmental applied policies on the production process of kiwi fruit investigated over the period 1998-2003 by using policy analysis matrix. iran has had comparative advantage in the production of this crop, but the profitability of this crop has been decreased in 1998-2003. the amount of domestic resource cost index has incr...

Journal: :مرتع و آبخیزداری 0
سمانه محمدی مقدم کارشناس ارشد مرتع داری، دانشکدة منابع طبیعی و محیط زیست، دانشگاه فردوسی مشهد ابوالفضل مساعدی استاد دانشکدة منابع طبیعی و محیط زیست، دانشگاه فردوسی مشهد محمد جنگجو دانشیار دانشکدة منابع طبیعی و محیط زیست، دانشگاه فردوسی مشهد منصور مصداقی استاد مدعو، دانشکدة منابع طبیعی و محیط زیست، دانشگاه فردوسی مشهد

although precipitation is the most important factor which effects rangeland production, but there is little information on the relationship between production and the interactions of climatic factors and specially drought indices. .in this research, the relation between production and climatic factors of rainfall, temperature, evapo- transpiration, and as well as drought indices of standardized...

Journal: :اقتصاد پولی مالی 0
مصطفی عمادزاده روح اله همتی نیا محمد صیادی

despite the fact that iran enjoys a high-potential agricultural sector in production of various products and the important role this sector plays in the development of non oil-based exports, a large amount of the government budget is being spent on the vegetable oil and oilseed rape (as animal food) import. for this reason, during the recent years the production of oil-based products is conside...

Journal: :کشاورزی (منتشر نمی شود) 0
غلام عباس اکبری استادیار گروه زراعت و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران، پاکدشت عبداله قاسمی پیربلوطی مربی گروه زراعت و اصلاح نباتات، دانشگاه آزاد اسلامی واحد شهرکرد، چهارمحال و بختیاری غلام علی اکبری استادیار گروه زراعت و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران، پاکدشت ایرج اله دادی استادیار گروه زراعت و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران، پاکدشت

to determine the effect of n-fertilizer on nitrogen harvest index (nhi), crop production and growth indices of corn (s.c.704 cultivar), an experiment was conducted with five nitrogen rates (100, 140, 180, 220 and 260 kg n/ha) in a randomly complete block design in four replicates. the effect of n-fertilizer rates on variation of grain yield, number of kernels, 1000-kernel weight, nitrogen harve...

خلیلی, علی , رحمانی, الهام , لیاقت, عبدالمجید ,

The growing season climatic parameters, especially rainfall, play the main role to predict the yield production. Therefore, the main objective of this research was to find out some possible relations among meteorology parameters and drought indexes with the yield using classical statistical methods. To achieve the objective, ten meteorological parameters and twelve drought indexes were evaluate...

Journal: Desert 2012
A. Mohebby A. Tavili E. Zandi Esfahan M. Jafari M. Ramezani S.A. Javadi

It has often been stated or implied that grazing is an important factor in the land degradation process, a suggestion supported by various research projects, and this study investigated the effect of livestock grazing on stem height, crowncover, production, basal diameter, stem biomass, litter, leaf-stem index (leaf to stem weight) , root diameter and weight and seed production per individual o...

ژورنال: مرتع 2022

Background and objectives: Determining the exact amount of forage production can be of great help to rangeland managers and relevant specialists in determining proper stocking rate. With implementing proper sampling design, remote sensing data could be used to accurately estimate forage production due to the extent of rangelands areas, cost, time spent and other problems in data gathering from ...

ژورنال: علوم آب و خاک 2008
خلیلی, علی , رحمانی, الهام , لیاقت, عبدالمجید ,

The growing season climatic parameters, especially rainfall, play the main role to predict the yield production. Therefore, the main objective of this research was to find out some possible relations among meteorology parameters and drought indexes with the yield using classical statistical methods. To achieve the objective, ten meteorological parameters and twelve drought indexes were evaluate...

Journal: :desert 2013
a. mohebby m. jafari a. tavili s.a. javadi e. zandi esfahan

it has often been stated or implied that grazing is an important factor in the land degradation process, a suggestion supported by various research projects, and this study investigated the effect of livestock grazing on stem height, crowncover, production, basal diameter, stem biomass, litter, leaf-stem index (leaf to stem weight) , root diameter and weight and seed production per individual o...

Journal: :desert 0
a. mohebby ph.d graduate, research institute of forests and rangelands (rifr),tehran, iran m. jafari professor, faculty of natural resources, university of tehran, karaj, iran a. tavili associate professor, faculty of natural resources, university of tehran, karaj, iran s.a. javadi assistant professor, science and research branch, islamic azad university, tehran, iran e. zandi esfahan assistant professor, research institute of forests and rangelands (rifr),tehran, iran m. ramezani member of scientific board, islamic azad university, science and research branch, tehran, iran

it has often been stated or implied that grazing is an important factor in the land degradation process, a suggestion supported by various research projects, and this study investigated the effect of livestock grazing on stem height, crowncover, production, basal diameter, stem biomass, litter, leaf-stem index (leaf to stem weight) , root diameter and weight and seed production per individual o...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید