بررسی اثر سیستم نوین مدیریت کشت(SRI) بر عملکرد دانه و بهره وری آب در مزارع برنج
الموضوعات : بوم شناسی گیاهان زراعییاسر قربانیان آستانه 1 , ابراهیم امیری 2 , تیمور رضوی پور 3 , مجتبی رضایی 4
1 - کارشناس ارشد آبیاری و زهکشی دانشگاه آزاد اسلامی واحد شوشتر،
2 - دانشیار دانشگاه آزاد اسلامی واحد لاهیجان، لاهیجان، ایران.
3 - عضو هیأت علمی مؤسسه تحقیقات برنج کشور، رشت، ایران.
4 - عضو هیأت علمی مؤسسه تحقیقات برنج کشور، رشت، ایران.
الکلمات المفتاحية: عملکرد دانه, شاخص برداشت, بیوماس, بهره وری آب,
ملخص المقالة :
به منظور بررسی بهره وری آب در سیستم های مختلف کشت و مقایسه آن با سیستم نوین مدیریت کشت برنج، آزمایشی در سال زراعی 1390 در موسسه تحقیقات برنج کشور (رشت) انجام شد. تیمارها شامل: روش کشت سنتی، روش کشت بهبود یافته و سیستم های مختلف کشت به روش سیستم نوین مدیریت کشت در قالب هشت تیمار مختلف کودی بودند. نتایج نشان داد که عملکرد دانه، بیوماس کل، شاخص برداشت، تعداد پنجه در متر مربع، بهره وری مبتنی بر بیوماس و بهره وری آب در سیستم نوین مدیریت کشت بطور معنی داری بیشتر از روش های سنتی و بهبود یافته بود. از بین تیمارهای مختلف تیمار (کود بازیافت زباله شهری + 50% کود شیمیایی) همراه با کاهش 50 درصدی در مصرف کود شیمیایی بیشترین عملکرد دانه و بهره وری آب را به ترتیب به مقدار 3122 کیلوگرم در هکتار و 56/1 متر مکعب بدست آوردکه به عنوان مدیریت مناسب پیشنهاد می شود.
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