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Volume 25 Issue 3
Nov.  2011
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LING Yong-sheng, LI Jin-quan, LIN Tao, CHEN Chao-wen. Mathematic optimization model of NPK fertilization for potato, Quanyun No.3[J]. Fujian Journal of Agricultural Sciences, 2010, 25(3): 314-318.
Citation: LING Yong-sheng, LI Jin-quan, LIN Tao, CHEN Chao-wen. Mathematic optimization model of NPK fertilization for potato, Quanyun No.3[J]. Fujian Journal of Agricultural Sciences, 2010, 25(3): 314-318.
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Mathematic optimization model of NPK fertilization for potato, Quanyun No.3

  • Quanzhou Agricultural Research Institute, Jinjiang, Fujian 362200, China

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  • Received Date: March 09, 2010
  • Revised Date: May 05, 2010
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    • Abstract
  • Using the quadratic regression current rotation compose design of 3 factors and 5 levels,the quantities of nitrogen(X1),phosphorus(X2)and potassium fertilizer(X3)for producing high yield on Quan-yun No.3 potatoes with commercial value were obtained.The results showed that the fertilizations affected the fresh potato production in the order,NK P,in loess hilly and gully regions in the southern Fujian with low soil fertility levels.The impact on the rate of commodity potatoes were KNP.Based on the best agronomy measure for potato production of 25.5 thm-2 and the percentage of commodity-grade potatoes at ≥75.39 % at 95% confidence level,the optimal combination by computer simulation for N was found to be 317.10-328.35 thm-2,P 110.85 thm-2 and K 293.70-331.05 thm-2.
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  • 徐志平,姚宝全,章明清,等.福建主要粮油作物测土配方施肥指标体系研究Ⅰ.土壤基础肥力对作物产量的贡献率及其施肥效应[J].福建农业学报,2008,23(4):396-402.
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