مقایسه عملکرد و کارآیی مصرف آب سه رقم نخود در شرایط دیم و آبیاری تکمیلی

نوع مقاله : مقالات پژوهشی

نویسنده

بخش تحقیقات علوم زراعی-باغی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان اصفهان، اصفهان، ایران

چکیده

به منظور مقایسه دو شیوه کشت دیم و کشت با یک مرحله آبیاری تکمیلی بر عملکرد و کارآیی مصرف آب سه رقم نخود پژوهشی در سال 94-1393 در ایستگاه تحقیقات کشاورزی رزوه (شهرستان چادگان- اصفهان) انجام شد. تیمارهای آزمایشی شامل دو روش کاشت (دیم و کاشت با یک نوبت آبیاری) به عنوان کرت اصلی و سه رقم نخود (آزاد، هاشم و آرمان) به عنوان کرت­های فرعی در نظر گرفته شدند. آزمایش به صورت کرت­های خردشده با طرح پایه بلوک­ کامل تصادفی در چهار تکرار انجام شد. نتایج نشان دادند دو روش کاشت از نظر عملکرد، اجزای عملکرد و کارآیی مصرف آب با هم تفاوت معنی­دار داشتند. رقم آزاد در شرایط دیم و آبیاری تکمیلی به ترتیب با 7/605 و 8/899کیلوگرم در هکتار به طور معنی­داری (در سطح احتمال 5‌درصد) عملکرد بالاتری نسبت به دو رقم دیگر تولید نمود. صرف نظر از نوع رقم، شاخص برداشت در شرایط دیم نسبت به شرایط آبیاری تکمیلی افزایش معنی­داری نشان داد و رقم آزاد از بیشترین مقدار شاخص برداشت ( 5/34‌درصد) برخوردار بود. سه رقم آزاد، هاشم و آرمان به ازای هر میلی‌متر آبیاری تکمیلی به ترتیب 88/5، 68/4 و 44/5کیلوگرم عملکرد اضافی (نسبت به شرایط دیم) تولید کردند. به طور خلاصه استفاده از رقم آزاد و انجام آبیاری تکمیلی نسبت به دو رقم دیگر نتایج بهتری دربرداشت.

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