اثرات آرایش کاشت و محلول¬پاشی عناصر آهن، روی و بور بر عملکرد و اجزاء عملکرد ذرت رقم 704
محورهای موضوعی : توليد محصولات زراعي
سعيد بداقي
1
(دانش آموخته كارشناسي ارشد گروه زراعت واحدخوي ، دانشگاه آزاد اسلامي ، خوي – ايران. )
محسن رشدی
2
(گروه زراعت و اصلاح نباتات، واحد خوی، دانشگاه آزاد اسلامی، خوی، ایران.)
کلید واژه: : آرایش کاشت, ذرت 704, عناصر ریزمغذی, محلول¬پاشی,
چکیده مقاله :
به منظور بررسی اثرات آرایش کاشت و محلول¬پاشی عناصر ریزمغذی بر عملکرد و اجزاء عملکرد ذرت رقم 704 پژوهشی به صورت بلوک¬های خرد شده نواری در قالب طرح بلوك¬هاي كامل تصادفي با چهار تکرار در ایستگاه تحقیقات کشاورزی شهرستان خوی در سال زراعی 1385 به اجرا در آمد. در این تحقیق کرت اصلی دارای دو سطح الگوی کاشت مستطیلی و الگوی کشت مربع بود. کرت فرعی محلول¬پاشی کودهای ریزمغذی در هشت تيمار شامل: عدم مصرف کود ریزمغذی (شاهد)، محلول¬پاشی آهن، روی، بور، آهن و روی، آهن و بور، روی و بور، آهن، روی و بور بود. محلول¬پاشی با غلظت 5 در هزار انجام گردید. نتایج نشان داد صفات طول بلال، وزن هزار دانه و عملکرد دانه در واحد سطح تحت تاثیر هر دو فاکتور قرار گرفتند. ارتفاع بوته و تعداد دانه در بلال تنها تحت تاثیر محلول¬پاشی عناصر ریزمغذی قرار گرفتند. اثر متقابل دو فاکتور بر شاخص برداشت معنی¬دار بود. در کل با توجه به نتایج به دست آمده، ایجاد آرایش کاشت مربع و محلول¬پاشی عناصر ریزمغذی باعث بهبود عملکرد و اجزاء عملکرد شدند، به طوری¬که بیشترین عملکرد دانه از آرایش کاشت مربع با 96/9 تن در هکتار و همچنین محلول¬پاشی آهن، روی و بور با 4/10 تن در هکتار به دست آمد.
To study the effects of sowing pattern and foliar application of Fe, Zn, and B on yield and yield components of corn Cv. 704 an experiment was done in stripe plot on the basis of randomized complete block design in four replications during the crop year of 2006 in the Agronomical Research Station of Khoy. In this experiment the first factor was in two levels: rectangular and square planting patter. Second factor was foliar application of micronutrients in eight levels which included control, foliar application of Fe, Zn, B, Fe+ Zn, Fe + B, Zn + B and Fe + Zn + B. Foliar application was done in 5000 ppm concentration. Results showed that ear length and seed number on ear were only affected by micronutrients foliar. Interaction of the two factors was significant on harvest index. In general, planting on square pattern and foliar application of micronutrients improved the yield components so that the highest yield was obtained in square pattern with 9.96 ton / ha and in foliar application of Fe, Zn, and B with 10.4 tons/ha.
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