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زهرا شریفی سید وحید اسلامی مجید جامی الاحمدی سهراب محمودی

چکیده

به‌منظور بررسی اثر کاربرد گیاهان پوششی در یک نظام زراعی مبتنی بر گندم و همچنین مطالعه اثر روش‌های شخم در این نظام، آزمایشی در سال زراعی 94-1393 در مزرعه دانشکده کشاورزی دانشگاه بیرجند به‌صورت کرت‌های خرد شده در قالب طرح پایه بلوک‌های کامل تصادفی در سه تکرار اجرا شد. سه نوع روش خاک‌ورزی (شامل عدم خاک‌ورزی، خاک‌ورزی کاهشی و خاک‌ورزی رایج) به‌عنوان عامل اصلی و گیاهان پوششی در 5 سطح (شامل خلر، منداب، جو ترش، تریتیکاله و عدم کشت گیاه پوششی به‌عنوان شاهد) به‌عنوان عامل فرعی در نظر گرفته شد. نتایج نشان داد که اثر روش خاک‌ورزی بر تعداد سنبله در مترمربع، وزن سنبله در مترمربع، عملکرد بیولوژیک و عملکرد دانه معنی‌دار (P<0.05) بود به‌طوری‌که سیستم عدم خاک‌ورزی و خاک‌ورزی کاهشی نسبت به خاک‌ورزی رایج، تعداد سنبله در مترمربع، عملکرد بیولوژیک و عملکرد دانه بیشتری تولید کردند. هم‌چنین نوع گیاه پوششی تأثیر معنی‌داری بر عملکرد دانه، وزن سنبله در متر مربع و وزن هزار دانه گندم (P<0.01)، تعداد سنبله در متر مربع، تعداد دانه در سنبله و عملکرد بیولوژیک (P<0.05) داشت، به‌طوری‌که در تیمار گیاه پوششی خلر و منداب، بیشترین عملکرد دانه گندم (به‌ترتیب 1/6511 و 2/6422 کیلوگرم در هکتار) مشاهده شد. به‌طور کلی یافته‌های این پژوهش، موفقیت کشت گیاهان پوششی خلر و منداب و اعمال روش‌های خاک‌ورزی حفاظتی را در بهبود عملکرد گندم نشان داد.

جزئیات مقاله

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ارجاع به مقاله
شریفیز., اسلامیس. و., جامی الاحمدیم., & محمودیس. (2017). تأثیر انواع شخم و گیاهان پوششی بر عملکرد و اجزای عملکرد گندم. پژوهشهای زراعی ایران, 16(1), 217-228. https://doi.org/10.22067/gsc.v16i1.62248
نوع مقاله
علمی پژوهشی

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