نتایج جستجو برای: forage quality

تعداد نتایج: 762764  

2014

The forage m atu ra tion hypothesis (FM H ) proposes th a t ungulate m igration is driven by selection for high forage quality. Because quality declines w ith p lan t m atu ra tion , bu t intake declines a t low biom ass, ungulates are predicted to select for interm ediate forage biom ass to maximize energy intake by following phonological gradients during the growing season. W e tested the F M...

Journal: :علوم گیاهان زراعی ایران 0
زهره کریمی دانشجوی سابق کارشناسی ارشد، گروه زراعت و اصلاح نباتات، دانشکدة کشاورزی، دانشگاه ایلام علی اشرف مهرابی دانشیار، گروه زراعت و اصلاح نباتات، دانشکدة کشاورزی، دانشگاه ایلام محمد جواد زارع دانشیار، گروه زراعت و اصلاح نباتات، دانشکدة کشاورزی، دانشگاه ایلام مهرشاد براری استادیار، گروه زراعت و اصلاح نباتات، دانشکدة کشاورزی، دانشگاه ایلام

investigation of various irrigation methods and intercropping are effective strategies for increasing water use efficiency and improve crop production. a field experiment conducted to study the effects of alternate furrow irrigation on quantitative and qualitative characteristics of forage corn with annual alfalfa cropping under its canopy in ilam climate conditions. experiment carried out as a...

Cocksfoot (Dactylis glomerata L.) is an important cool season grass species in the moderate climate of Iran. In order to evaluate the yield and quality traits, an experiment was conducted in irrigation conditions using 36 accessions of Dactylis glomerata using a randomized complete block design with three replications in Islamabad, Kermanshah province, Iran in 2010. Characters such as forage dr...

Journal: :Remote Sensing 2016
Erica L. Garroutte Andrew J. Hansen Rick L. Lawrence

The Normalized Difference Vegetation Index (NDVI) and the Enhanced Vegetation Index (EVI) have gained considerable attention in ecological research and management as proxies for landscape-scale vegetation quantity and quality. In the Greater Yellowstone Ecosystem (GYE), these indices are especially important for mapping spatiotemporal variation in the forage available to migratory elk (Cervus e...

Journal: :Canadian Journal of Plant Science 1996

Journal: :Journal of Range Management 1975

Journal: :Journal of Range Management 1986

Journal: :پژوهش های علوم دامی ایران 0
حسین ارزانی زینب جعفریان جلودار علی نیکخواه حسین آذرنیوند مهدی قربانی

to estimate the grazing capacity in each region it is necessary to determine animal requirement based on forage quality and animal unit weight of dominant sheep breed. in present study animal unit weight of farahani sheep breed was investigated. two herds were selected. thirty animals including 15 three and four years' old ewes, 5 nine months old lambs, 5 six months old lambs, 5 three and four ...

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