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ارزیابی واکنش برنج رقم آنام به سطوح مختلف کودهای فسفر و پتاسیم | ||
| دوفصلنامه فنآوری تولیدات گیاهی | ||
| دوره 17، شماره 2، بهمن 1404، صفحه 87-100 اصل مقاله (551.86 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22084/ppt.2025.31249.2167 | ||
| نویسندگان | ||
| شهرام محمود سلطانی* 1؛ سیدرضا سیدی2؛ مهرزاد الهقلیپور1؛ علیرضا نبیپور3؛ ابوذر عباسیان2 | ||
| 1دانشیار مؤسسه تحقیقات برنج کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، رشت، ایران | ||
| 2کارشناس مؤسسه تحقیقات برنج کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، رشت، ایران | ||
| 3استادیار مؤسسه تحقیقات برنج کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، آمل، ایران | ||
| چکیده | ||
| فسفر و پتاسیم از عناصر ضروری رشد و نمو برنج بهشمار میروند که میزان مصرف آنها در معرفی ارقام جدید کمتر موردتوجه قرار گرفته است. لذا به این منظور، آزمایشی دو ساله بهصورت فاکتوریل در قالب طرح بلوکهای کامل تصادفی در سه تکرار با هدف تعیین حد بهینه مصرف این کودها در کشت برنج رقم آنام در مزارع پژوهشی مؤسسه تحقیقات برنج کشور (رشت و تنکابن) انجام شد. فاکتورهای آزمایشی شامل مصرف کودهای فسفر (شاهد، 30، 45 و 60 کیلوگرم پنتا اکسید فسفر در هکتار) و پتاسیم (شاهد،50، 100 و 150 کیلوگرم اکسید پتاسیم در هکتار) بودند. نتایج نشان داد که مصرف 60 کیلوگرم فسفر و 150 کیلوگرم پتاسیم در هکتار بهترتیب سبب افزایش 45، 44/4، 64/5، 64/7 و 55/8 درصدی تعداد پنجه کل، تعداد پنجه بارور، تعداد خوشه در مترمربع، تعداد دانه پر در خوشه، وزن هزار دانه و کاهش 33/3 درصدی تعداد دانه پوک در خوشه در مقایسه با تیمار شاهد شد. همچنین، بیشترین میانگین عملکرد شلتوک با میانگین 5061/8 و 4909 کیلوگرم در هکتار از تیمار مصرف 60 کیلوگرم فسفر و 150 کیلوگرم پتاسیم در هکتار بهترتیب در مزارع پژوهشی رشت و تنکابن حاصل شد که دارای افزایش 75/2 و 47/7 درصدی نسبت به تیمار شاهد و و افزایش 4/4 و 12/2 درصدی نسبت به تیمار مصرف کودهای شیمیایی توصیه شده بهترتیب در مزراع پژوهشی رشت و تنکابن بود. لذا مصرف تیمار ترکیبی مذکور بهدلیل ثبت بیشترین میانگین اجزای عملکرد و عملکرد شلتوک برای برنج رقم آنام پیشنهاد میشود. | ||
| کلیدواژهها | ||
| اجزای عملکرد؛ ارقام اصلاح شده؛ شالیزار؛ عملکرد شلتوک | ||
| مراجع | ||
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