Effect of N, P, K Levels and Timing of Topdressing on Growth, Yield and Economic Efficiency of Mungbean Grown in Thanh Hoa Coastal Sandy Soils

Received: 18-07-2017

Accepted: 30-08-2017

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Issue: Vol. 15 No. 6 (2017)

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NÔNG HỌC

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Anh, N., Hoa, V., & Chinh, N. (2024). Effect of N, P, K Levels and Timing of Topdressing on Growth, Yield and Economic Efficiency of Mungbean Grown in Thanh Hoa Coastal Sandy Soils. Vietnam Journal of Agricultural Sciences, 15(6), 709–717. http://testtapchi.vnua.edu.vn/index.php/vjasvn/article/view/407

Effect of N, P, K Levels and Timing of Topdressing on Growth, Yield and Economic Efficiency of Mungbean Grown in Thanh Hoa Coastal Sandy Soils

Nguyen The Anh (*) 1 , Vu Dinh Hoa 2 , Nguyen Thi Chinh 3

  • 1 Nghiên cứu sinh Khoa Nông học, Học viện Nông nghiệp Việt Nam
  • 2 Khoa Nông học, Học viện Nông nghiệp Việt Nam
  • 3 Trung tâm Chuyển giao Công nghệ và Khuyến nông, Viện Khoa học Nông nghiệp Việt Nam

    • Keywords

    Mungbean, fertilizer level, coastal sandy soil, yield, economic efficiency

    Abstract


    Identifying optimal fertilizer rate and frequency and timing of nitrogen and potassium split application presents one of the nutrient management measures for improvement of mungbean yield on sandy soil in general and on coastal sandy soil in Thanh Hoa province in particular. In the present study, the effect of three NPK rates (LL1, LL2, and LL3) and frequency and timing of NK split applications (TD1, TD2, and TD3) on plant growth, grain yield and economic efficiency of two mungbean varieties were studied. Mungbean cultivars ĐX208 and ĐX16 were grown on coastal sandy soils in the districts of Nga Son and Hoang Hoa and Tinh Gia, respectively, in 2012 and 2013 summer cropping seasons. Plant growth and yield were influenced by the level of fertilizer, timing and frequency of nitrogen and potassium top dress application. For cv. ĐX208, highest fertilizer rate (LL3) resulted in high yield although not significant compared with the control. Fertilizer rate LL3 with TD3 split application resulted in better growth and significantly higher yield as compared with the control (TD1). However, LL2 with TD2 split application brought about highest yield and economic return for ĐX 2008, while for shorter growth duration cv. ĐX16, LL2 with TD2 split applcation resulted in highest yield and economic return.

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