effects of azospirillum and azotobacter on yield and yield components of barley (hordeum vulgare l.) under various levels of cow manure application

نویسندگان

منیر دهمرده

دانشجوی کارشناسی ارشد آگرواکولوژِی، گروه زراعت، دانشکدۀ کشاورزی، پردیس خودگردان، دانشگاه زابل عیسی خمری

استادیار، گروه زراعت، دانشکدۀ کشاورزی، دانشگاه زابل مهدی دهمرده

استادیار، گروه زراعت، دانشکدۀ کشاورزی، دانشگاه زابل احمد اصغر زاده

استادیار، مؤسسۀ تحقیقات خاک و آب

چکیده

to study the effect of biofertilizers and manure on yield and yield components of barley (hordeum vulgare) an experiment was conducted at research farm of university of zabol, iran in 2012 cropping season. experimental treatments were arranged in a factorial design based on a randomized complete block design with three replications. treatments were three manure levels (control, 20 ton/h-1, 30 ton/h-1) and four levels of biofertilizers (control, azospirillum, azotobacter and azospyrilium+azotobacter). results indicated that manure levels had a significant effect on plant height, spike length, number of seed in spike and number of spike in plant. biofertilizers caused significant differences in all measured traits expect for harvest index. the interaction effects showed that integrated application of manure and biofertilizers were more effective on barley growth. the highest economical yield (2.6 ton/h-1) was detected in 20 ton/h-1manure + azospirillum and azotobacter application. integrated application of manure and biofertilizers could significantly increase seed yield and yield components of barley.

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عنوان ژورنال:
علوم گیاهان زراعی ایران

جلد ۴۵، شماره ۱، صفحات ۶۵-۷۲

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