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Volume 27 Issue 7
Sep.  2012
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LIN Yong-zhong, LI Xiao-ping, JIANG Zhao-wei, WENG Ding-he. Nitrogen Absorption and Accumulation and Fertilization of Potatoes[J]. Fujian Journal of Agricultural Sciences, 2012, 27(7): 679-684.
Citation: LIN Yong-zhong, LI Xiao-ping, JIANG Zhao-wei, WENG Ding-he. Nitrogen Absorption and Accumulation and Fertilization of Potatoes[J]. Fujian Journal of Agricultural Sciences, 2012, 27(7): 679-684.
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Nitrogen Absorption and Accumulation and Fertilization of Potatoes

  • 1.

    Agricultural Technology Extension Station of Zhangzhou City,Zhangzhou,Fujian 363000,China;

  • 2.

    Rice Research Institute,Fujian Academy of Agricultural Sciences,Fuzhou,Fujian 350019,China;

  • 3.

    Agricultural Technology Extension General Station,Fujian Province Department of Agriculture, Fuzhou,Fujian 350001,China

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  • Received Date: May 25, 2012
  • Revised Date: July 05, 2012
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    • Abstract
  • Different nitrogen (N) application levels in the winter potato areas in the Southeast Fujian were conducted to explore the characteristics of N absorbtion and accumulation as well as application technology. The results showed that N accumulation in the whole plant and tuber of the potatoes both exhibited a Logistic dynamic curve. The dynamics of leaf area and dry matter accumulation in stems and leaves all showed a single peak curve. The yield, dry matter and starch accumulation of tuber in potatoes all had parabola correlation with N application. Under the tested conditions, the economic N application was determined to be 239.5 kg穐m-2 with an expected yield of 38 t穐m-2. On the average, N absorption and application were 3.31 kg and 5.91 kg for fresh potatoes per 1 000 kg, respectively.
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    • References (2)
  • SHAR S P,赵侠.氮的少量频施对马铃薯产量的影响[J]. 国外农学:杂粮作物,1990,(6):49-50.
    康玉林,闫振贵.土壤施氮与马铃薯块茎中粗蛋白质含量的关系[J].马铃薯杂志,1995,9(2):66-69.
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