اثر کودهای آلی و شیمیایی نیتروژنی بر برخی از خصوصیات خاک و گیاه ذرت شیرین رقم گرده افشان 400

نوع مقاله: پژوهشی

نویسندگان

1 عضو باشگاه پژوهشگران جوان و نخبگان، دانشگاه آزاد اسلامی واحد میانه، میانه، ایران.

2 عضو هیأت علمی دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد میانه، میانه، ایران.

چکیده

به ­منظور بررسی واکنش خصوصیات خاک و صفات گیاه ذرت شیرین به کاربرد سطوح مختلف کودهای آلی و شیمیایی، پژوهشی گلخانه‎ای- آزمایشگاهی در دانشگاه آزاد اسلامی واحد میانه به ­صورت فاکتوریل در قالب طرح کاملاً تصادفی با سه تکرار انجام شد. بدین منظور کود­ مرغی در سه سطح (شاهد، 20 و 30 تن در هکتار) و سه سطح کود نیتروژن (شاهد، 100 و 200 کیلوگرم نیتروژن در هکتار از منبع اوره) جهت انجام آزمایش مورد استفاده قرار گرفت. نتایج به ­دست آمده نشان داد که کاربرد کود مرغی سبب افزایش معنی­دار pH، هدایت الکتریکی، کربن و ماده آلی خاک شد. هم‎چنین اثر آن بر محتوای کلروفیل، ارتفاع و سطح برگ گیاه ذرت شیرین معنی­دار بود. تیمار 20 و 30 تن کود مرغی در هکتار نسبت به سایر تیمارها اثر بیشتری بر صفات مورد بررسی نشان داد. با توجه به این‎که اختلاف دو تیمار مذکور در اکثر موارد معنی­دار نبود، می­توان چنین اظهار داشت که کاربرد 20 تن کود مرغی در هکتار برای رشد مطلوب گیاه ذرت شیرین در خاک گل‎خانه کافی می­باشد. هم‎چنین در صورت استفاده تلفیقی کود نیتروژن و کود مرغی در سامانه­ زراعی ذرت شیرین، مقدار 100 کیلوگرم در هکتار کود نیتروژنه و 20 تن در هکتار کود مرغی قابل توصیه بود.

کلیدواژه‌ها


عنوان مقاله [English]

Effects of organic and chemical fertilizers of nitrogen on some soil properties and sweet corn traits (var.Gardeh Afshan 400)

نویسندگان [English]

  • Masoumeh Shahmoradi 1
  • Manouchehr Farboodi 2
  • Shahram Shahrokhi 2
1 1. M.Sc., Member of Young Researchers’ Club, Miyaneh Branch, Islamic Azad University, Miyaneh, Iran.
2 Imam Khomeini Higher Education Center of Jihad-e-Agriculture.|Assistant Prof., Agriculture Faculty, Miyaneh Branch, Islamic Azad University, Miyaneh, Iran.
چکیده [English]

In order to study the response of soil properties and sweet corn traits to different levels of organic and chemical fertilizers of nitrogen, a greenhouse­-­laboratory research was carried out as factorial based on a completely randomized design with three replications in Miyaneh Branch, Islamid Azad University. Experimental factors included poultry manure at three levels (0, 20 and 30 ton.ha-1) and nitrogen fertilizer at three levels (0, 100 and 200 kg.ha-1 from urea source). Results showed that application of poultry manure in soil increased soil pH, EC and organic carbon. Also, it had a significant effect on chlorophyll content, plant height and leaf area of sweet corn plants. Application of 20 and 30 ton.ha-1 poultry manure resulted in higher values of the studied traits. However, there was no ­significant differences between 20 and 30 ton.ha-1 poultry manure in most cases and so, application of 20 ton.ha-1 poultry manure was enough for achieving optimal sweet corn growth in greenhouse. According to the results, combined application of 20­ ton.ha-1 poultry manure and 100­ kg.ha-1 nitrogen from urea source could be recommended for optimum nitrogen supplying in sweet corn cropping system.

کلیدواژه‌ها [English]

  • Soil Chemical Properties
  • sweet corn
  • leaf area
  • Poultry manure
  • nitrogen
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