واکنش عملکرد و اجزای عملکرد سه رقم کنجد (.Sesame indicum L) به کاربرد تلفیقی نیتروژن و کود بیولوژیک سوپرنیتروپلاس

نوع مقاله : علمی - پژوهشی

نویسندگان

چکیده

امروزه استفاده از کودهای بیولوژیکی در راستای کشاورزی پایدار در حال گسترش است. به همین منظور چهار سطح نیتروژن (0، 60، 90 و 120 کیلوگرم در هکتار) به عنوان عامل اصلی و کود بیولوژیک سوپرنیتروپلاس به عنوان عامل فرعی (عدم مصرف و مصرف) بر عملکرد و اجزای عملکرد سه رقم کنجد (ناز، اولتان و ورامین) به عنوان عامل فرعی فرعی در یک آزمایش کرت های دو بار خرد شده در قالب طرح بلوک های کامل تصادفی با سه تکرار اجرا شد. نیتروژن تأثیر معنی داری روی تعداد کپسول در بوته، تعداد دانه در کپسول، وزن هزار دانه، تعداد شاخه ی فرعی و عملکرد دانه در هکتار داشت. مصرف کود بیولوژیک درصد باروری گل را افزایش داد و تعداد کپسول در بوته را فقط در رقم ورامین افزایش داد. کود بیولوژیک بر عملکرد دانه تأثیر معنی داری داشت و باعث افزایش تقریباً 10 درصدی عملکرد دانه نسبت به حالت عدم مصرف شد. ارقام به طور معنی داری از لحاظ تمامی صفات با هم اختلاف داشتند. با توجه به معنی دار شدن اثر متقابل بین رقم و نیتروژن برای عملکرد دانه کنجد و در نظر گرفتن هزینه و مشکلات زیست محیطی ناشی از مصرف کودها برای دستیابی به عملکرد مطلوب کنجد در رقم اولتان (3240 کیلوگرم در هکتار) مصرف 60 کیلوگرم نیتروژن و در رقم ناز (2971 کیلوگرم در هکتار) و ورامین (2319 کیلوگرم در هکتار) مصرف 90 کیلوگرم نیتروژن در هکتار توصیه می شود. در مجموع رقم اولتان از لحاظ عملکرد دانه نسبت به رقم ناز و رقم ناز نسبت به ورامین برتری داشت.

کلیدواژه‌ها


عنوان مقاله [English]

Response of yield and yield components of three sesame (Sesame indicum L.) cultivars to application of nitrogen and supernitroplus biofertilizer

نویسندگان [English]

  • R Hasanpour
  • H Pirdashti
  • M.A Esmaeili
  • A Abbasian
چکیده [English]

Recently, biofertilizer application is growing to meet sustainable agriculture goals. The present experiment was designed to evaluate four nitrogen levels (0, 60, 90 and 120 kg N.ha-1) as main plots, two supernitroplus biofertilizer levels) with and without biofertilizer) as sub-plots on yield and yield components of three sesame cultivars (Naz, Oltan and Varamin (as sub-sub-plots in a split-split plot experiment arranged in a randomized complete block design with three replications. Nitrogen rates had a significant effect on number of capsule per plant, number of seed per capsule, 1000-seed-weight, number of stem branch per plant and seed yield. Application of biofertilizers could increase percentage of fertile flower in all cultivars while number of capsule per plant increased only in Varamin. Application of biofertilizer caused an increase in seed yield by 10% compared to control. Optimum amount of seed yield was belong to Oltan )3240 kg.ha-1 (with 60 kg N.ha-1, Naz 2971 kg.ha-1) and Varamin (2319 kg.ha-1) with 90 and 120 kg N.ha-1. Oltan was superior than Naz while Naz had better performance than Varamin for seed yield.

کلیدواژه‌ها [English]

  • Number of capsule per plant
  • Number of seed per capsule
  • Number of stem branch per plant
  • Percentage of fertile flower
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