تاثير سطوح مصرف کود اوره بر برخی صفات رویشی و زایشی آفتابگردان آجيلی رقم کانفتا

محورهای موضوعی :

جواد پرو ¹ (دانش آموخته کارشناسی ارشد زراعت واحد آستارا ، دانشگاه آزاد اسلامی، آستارا – ايران.)

تاریخ دریافت : 1392/09/21 تاریخ پذیرش : 1393/11/30 تاریخ انتشار : 1393/02/16

کلید واژه: آفتابگردان, اوره, خوي و کانفتا.,

چکیده مقاله :

به منظور بررسی تاثير سطوح مصرف کود اوره بر برخی صفات آفتابگردان رقم کانفتا، آزمایشی طی ساا 931 در مزرعهاي واقع در روستاي بيزنده از توابع شهرستان خوي اجرا گردید. این آزمایش در قالب طرح بلوكهااي کاما تصادفی با سه تكرار اجرا شد. در این تحقيق کود اوره در هفت سطح )عدم مصرف کود نيتروژنه، مصرف 91 کيلاوگرم کمتر از توصيه کودي، مصرف 1 کيلوگرم کمتر از توصيه کودي، مصرف برابر با توصيه کودي، مصارف 1 کيلاوگرم بيشتر از توصيه کودي، مصرف 91 کيلوگرم بيشتر از توصيه کودي و مصرف 01 کيلوگرم بيشتر از توصيه کاودي ( باود . نتایج نشان داد که اوره بر صفات ارتفاع بوته، تعداد دانه پر، وزن صد دانه، عملكرد دانه و عملكرد بيولوژیا معنای دار بود. بيشترین ) 9 گرم در مترمربع( و کمترین ) 79 گرم در مترمربع( عملكرد دانه به ترتيب در تيمار مصارف اوره 91 کيلوگرم بيشتر از توصيه کودي و عدم مصرف کود نيتروژنه به دست آمد. مصرف کود نيتاروژن حتای بيشاتر از مقادار توصيه شده ) 1 کيلوگرم بيش از توصيه کودي( اثر مثبتی بر عملكرد و اجزاي عملكرد گياه دارد.

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