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Volume 25 Issue 3
Nov.  2011
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LI Juan, ZHANG Ming-qing, KONG Qing-bo, YAO Bao-qun. Recommended NPK fertilization for Chinese cabbage[J]. Fujian Journal of Agricultural Sciences, 2010, 25(3): 336-339.
Citation: LI Juan, ZHANG Ming-qing, KONG Qing-bo, YAO Bao-qun. Recommended NPK fertilization for Chinese cabbage[J]. Fujian Journal of Agricultural Sciences, 2010, 25(3): 336-339.
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Recommended NPK fertilization for Chinese cabbage

  • 1.

    Soil and Fertilizer Institute, Fujian Academy of Agricultural Science, Fuzhou, Fujian 350013, China;

  • 2.

    Fujian Cropland Construction and Soil and Fertilizer Station, Fuzhou, Fujian 350003, China

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  • Received Date: April 19, 2010
  • Revised Date: May 28, 2010
    Graphical Abstract
    • Abstract
  • The responses and optimum application rate of NPK fertilizer for the Chinese cabbage were studied by conducting field experiments.The results showed that the average contribution rate of soil fertility to the Chinese cabbage productivity was 47.4%.The Chinese cabbages that received N,P and K increased their yields by 41.26%,14.90% and 25.53%,respectively,on the average.In other words,the effectiveness on productivity improvement was NKP.The output/input ratios on N,P and K were 13.8,13.2 and 9.7,respectively.N fertilizer had a higher output/input ratio than P or K fertilization when the soil fertility was low.On the other hand,the P and K had higher output/input than N in the soil of high fertility.The recommended application rates of NPK for the Chinese cabbages were found to be N 232.0 kghm-2,P2O570.5 kghm-2 and K2O 209.6 kghm-2,or 1:0.3:0.9 in proportion.The predicted output was 33308.7 kghm-2.
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    • References (1)
  • 毛达如,张承东.多点肥料效应函数的动态聚类方法[J].北京农业大学学报,1991,17(2):49-54.
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