ACTA AGRICULTURAE BOREALI-SINICA ›› 2010, Vol. 25 ›› Issue (S2): 200-203. doi: 10.7668/hbnxb.2010.S2.045

Special Issue: Soil fertilizer

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Comprehensive Evaluation of Soil Fertility in Xiangfan Tobacco-growing Areas

YAN Tie-jun1, WU Feng-guang1, MAO Fu-li2, HE Jie-wang1, XU Zi-cheng2, WANG Lin1   

  1. 1. Tec.Center,China Tobacco Hubei Industrial Corporation,Wuhan 430052,China;
    2. College of Tobacco Science,Henan Agricultural University,Zhengzhou 450002,China
  • Received:2010-10-23 Published:2010-12-31

Abstract: "Based on principal component analysis and cluster analysis,the comprehensive evaluation of soil fertility of Xiangfan tobacco-growing area was conducted.Nine soil fertility indexes of 262 soil samples were analyzed by principal component analysis,and six principal components with accumulative contribution rate over 90% were obtained.The scores of the six principal components and comprehensive scores were also obtained.The 262 samples were clustered with comprehensive scores as a measurement,and they were divided into 4 ranks by regularly spaced distinct method.Rank 1 was of the highest soil fertility with comprehensive scores ≥0.5,rank 2 was of higher soil fertility with comprehensive scores 0.0-0.5,rank 3 was of the medium soil fertility with comprehensive scores-0.5-0.0,rank 4 was of low soil fertility with comprehensive scores ≤-0.5. "

Key words: Xiangfantobacco-growingarea, Soilnutrient, Comprehensiveevaluation, Principalcomponentanalysis, Clusteranalysi

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Cite this article

YAN Tie-jun, WU Feng-guang, MAO Fu-li, HE Jie-wang, XU Zi-cheng, WANG Lin. Comprehensive Evaluation of Soil Fertility in Xiangfan Tobacco-growing Areas[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(S2): 200-203. doi: 10.7668/hbnxb.2010.S2.045.

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