نتایج جستجو برای: dry forage yield

تعداد نتایج: 286193  

Journal: :Journal of animal science 1982
M Kiatoko L R McDowell J E Bertrand H L Chapman F M Pate F G Martin J H Conrad

The nutrient status of grazing beef cattle from four selected soil order regions of Florida was examined. Liver, blood, hair and feces samples from 14 heifers and 14 cows, plus forage samples, were collected during two periods of the year from nine ranches located in four different regions. Soil samples were collected during one period. The soil order regions were the Histosol (southeast), Spod...

ارزانی, احمد ,

Knowledge of the effects of row spacings and seeding rates on dual-purpose forage and seed production of an annual legume crop is essential for its proper agronomical exploitation. In this study, the effects of various row spacings and seeding rates on dry matter and seed yield in berseem clover (Trifolium alexandrinum L.) were evaluated in two consecutive years. The experimental design was a s...

Journal: :یافته های تحقیقاتی در گیاهان زراعی و باغی 0
غلامرضا طاهریون مرکز تحقیقات کشاورزی و منابع طبیعی زنجان کاظم سلیمانی تقی محمدی

this study planed to determine appropriate planting date and proportion of alfalfa and barley in mixed cropping. experiment carried out in khair abad station of agricultural and natural resources research center of zanjan for five years (2004-2007), using split plot design which main plot was planting date (aug .15, sep.26 and oct .6) and subplot contain alfalfa to barley ratio, barley, alfalfa...

Journal: :به نژادی نهال و بذر 0
اردلان مهرانی a. mehrani seed and plant improvement institute, karaj, iranموسسه تحقیقات اصلاح و تهیه نهال و بذر، کرج سیدافشین مساوات a. mosavat احمدعلی شوشی , a. a. shushi محمدرضا عباسی , m. r. abbasi حمید نجفی نژاد h. najafinejad سیدعلی طباطبائی s. a. tabatabaii علیرضا قاسمی

the main objective for development and introduction of the new cultivar was to a achieve a high yielding and adaptative to short growing period or a catch crop, suitable for growing in different areas of iran. after preliminary selections carried out during 1998-2000, 72 foxtail millet populations which had been collected from different parts of iran, were examined and based on different agrono...

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 (...

ژورنال: علوم زراعی ایران 2020

To evaluate and select the promising lines of dual purpose grain-forage sorghum under drought stress conditions, a field experiment assplit plot arrangements in randomized complete block design with three replications was carried out atresearch field station of Seed and Plant Improvement Research Institute, Karaj, Iran, in 2014 and 2015 growing seasons. Irrigation levels (60 mm, 120 mm and 180 ...

Journal: :به زراعی کشاورزی 0
راضیه نبوی مقدم کارشناس ارشد، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه آزاد واحد بیرجند، بیرجند ـ ایران محمد حسین صابری استادیار مرکز تحقیقات کشاورزی و منابع طبیعی خراسان جنوبی، بیرجند ـ ایران محمدحسن سیاری استادیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه بیرجند، بیرجند ـ ایران

to investigate the effect of different amounts of fe and mn on qualitative and quantitative traits of forage maize (zea mays l.) hybrid single cross 704, an experiment was conducted as a factorial in a randomized complete block design with 16 treatments and three replications at qaneat city (southern khorasan province) in 2010. treatments consisted of 4 levels of feso4 (no fertilizer as control...

Journal: :پژوهش های زراعی ایران 0
احسان عیشی رضایی پرویز رضوانی مقدم حمید رضا خزاعی علی اصغر محمد آبادی

intercropping is one of the most important approaches for sustainable agricultural production. in order to evaluate the effect of planting patterns and millet density on forage yield of millet and soybean, an experiment was conducted in the research farm of faculty of agriculture, ferdowsi university of mashhad during the 2007-2008 growing season. the experiment was performed as factorial based...

Journal: :کشاورزی (منتشر نمی شود) 0
سید علی رضا سیدمحمدی دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد اهواز، خوزستان علی اشرف جعفری دانشیار مؤسسه تحقیقات جنگل ها و مراتع کشور، تهران، تهران نسرین السادات سیدمحمدی دانش آموخته کارشناسی ارشد گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران، تهران سید نادر موسویان دستیار علمی دانشگاه پیام نور خوزستان، خوزستان عصمت سرافراز دانشجوی دوره دکتری رشته زراعت، گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران، تهران

in order to choose the best adaptable genotypes for arak condition, 31 genotypes of crested wheatgrass collected of gene bank research institute of forests and rangelands iran, were examined under normal and drought stress conditions using randomized complete block design with 3 replications during 2004-05. the days to heading and days to pollination, plant height (cm), number of tiller, spike ...

دهقان کوهستانی , رسول, مجیدی, محمد مهدی , ویسی پور, امین,

Selection based on indices is an effective method for breeding complex traits. To assess the efficiency of different selection methods, twenty one accessions of Sainfoin (Onobrychis viciifolia) were evaluated in two environments including drought stress and non-stress conditions according to a randomized complete block design with three replications in 2010. In this study, the selection indices...

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