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Volume 25 Issue 3
Nov.  2011
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WENG Ding-he, LI Xiao-ping, WANG Hai-qin, JIANG Zhao-wei. Potassium absorption and fertilization of potatoes[J]. Fujian Journal of Agricultural Sciences, 2010, 25(3): 319-324.
Citation: WENG Ding-he, LI Xiao-ping, WANG Hai-qin, JIANG Zhao-wei. Potassium absorption and fertilization of potatoes[J]. Fujian Journal of Agricultural Sciences, 2010, 25(3): 319-324.

Potassium absorption and fertilization of potatoes

  • Received Date: 2010-02-03
  • Rev Recd Date: 2010-04-09
  • Publish Date: 2010-06-15
  • To understand the potassium(K)absorption and fertilization of potatoes,an experiment was conducted in Southeast Fujian using the winter potatoes.The results showed that the K accumulation in the entire plant and tuber of the potatoes was a Logistic dynamic curve.The vigorous stage of the absorption occurred during the 14d before squaring to the 15d prior to maturation.In the late stage,the tuber acquired K primarily from the leaves.The potato yield correlated to the amount of K application parabolically.Under the test conditions,the economic K application was determined to be 201.6 kghm-2 with an expected yield of 37424 kghm-2.On the average,to produce 1 000 kg tubers 5.4 kg of K fertilization were required.
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    陈少珍,郑龙川,洪跃通.马铃薯新品种引进试验初报[J].福建农业科技,2007(4):39-41.
    [2]
    谭金芳,张自立,邱慧珍.作物施肥原理与技术[M].北京:中国农业大学出版社,2003:214-217.
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