تأثیر روش، میزان و زمان کاربرد کود‌ نیتروژن بر عملکرد و اجزاء عملکرد گلرنگ پاییزه در منطقه اراک

نوع مقاله : مقاله پژوهشی

نویسنده

استادیار، گروه زراعت دانشگاه استان مرکزی، تخصص: زراعت. علایق: گلرنگ/کودهای زیستی/محرک های زیستی رشد گیاهی/ کودهای آلی

چکیده

به منظور بررسی تأثیر زمان، میزان و روش مصرف نیتروژن بر عملکرد و اجزاء عملکرد گلرنگ (Carthamus tinctorious L.) پاییزه آزمایشی در سال زراعی 90-1389 در مزرعه آموزشی – تحقیقاتی دانشگاه پیام نور شهرستان اراک به صورت فاکتوریل در قالب طرح پایه بلوک های کامل تصادفی با سه تکرار انجام شد. تیمارها شامل زمان مصرف کود اوره در سه حالت (مصرف نیمی در زمان کشت و مصرف نیمی دیگر در مرحله روزت)، (مصرف نیمی از کود در مرحله روزت و نیمی دیگر در زمان ساقه دهی)، (مصرف نیمی از کود در زمان ساقه دهی و نیمی دیگر در زمان غوزه‌دهی)، میزان های مصرف کود اوره (کاربرد 150 و 300 کیلوگرم در هکتار در روش‌های خاک مصرف و محلول در آب آبیاری، 15 و 30 کیلوگرم در هکتار اوره در روش محلول پاشی روی برگ‌ها) و روش‌های کاربرد کود اوره (خاک مصرف، محلول در آب آبیاری و روش محلول پاشی روی برگ‌ها) بودند. نتایج نشان داد که برهمکنش تیمار زمان، میزان و روش مصرف کود اوره بر صفات زراعی مهم گلرنگ معنی دار بود، به نحوی که تیمار (مصرف 50 درصد کود اوره در موقع کشت + مصرف 50 درصد کود اوره در مرحله مرحله روزت + مصرف 300 کیلوگرم اوره بصورت خاک مصرف) و تیمار (مصرف 50 درصد کود اوره در مرحله کشت + مصرف 50 درصد کود اوره مرحله روزت + مصرف 150 کیلوگرم اوره همراه با آب آبیاری) به ترتیب بالاترین (1590 کیلوگرم در هکتار) و کمترین (1037 کیلوگرم در هکتار) عملکرد دانه را به خود اختصاص دادند.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Effect of method, rate and time of nitrogen application on yield and yield components of winter safflower in Arak region

نویسنده [English]

  • Mohammad Mirzakhani
Corresponding
چکیده [English]

In order determine the the effect of method, rate and time of nitrogen (N) application on yield and yield components of winter safflower in Arak, this study was carried out in growing season of 2011 at Research field of Payaam Nour Arak University, Markazi province, Arak, Iran. A factorial arrangement design was used in a randomized complete blocks design with three replications. Treatments were time of N application [(half at planting date and half at rosette growing stage), (half at rosette growing stage and half at stem elongation growing stage ) and (half at stem elongation and half at capitalum stage), N rates (150 and 300 kg ha-1 as urea) and method of application (mixing with soil, applied in irrigation water and foliar application) were assigned in plots. The highest (1590 kg ha-1) and lowest (1037 kg ha-1) of seed yield obtained with application of half of urea at sowing time and the other half at rossete growing stage with 300 kg ha-1urea mixing with soil), and50% of urea at sowing time and half at rossete growing stage with 150 kg ha-1 of urea mixing with irrigation water), respectively.

کلیدواژه‌ها [English]

  • Biological yield
  • Boll
  • foliar
  • harvest index
  • Urea
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