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Volume 27 Issue 7
Sep.  2012
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Article Contents
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.

Nitrogen Absorption and Accumulation and Fertilization of Potatoes

  • Received Date: 2012-05-26
  • Rev Recd Date: 2012-07-06
  • Publish Date: 2012-07-30
  • 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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    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.
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