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中文
以福建三明烟区11个县(市)的17个土壤肥力因子为例,采用多元统计的主成分分析法对土壤肥力等级进行综合地评价,为烟区科学合理的施肥提供依据。借助SPSS统计软件,可以得出土壤肥力因子前4个主成分的特征值λ>1,且方差贡献率分别为46.528%,20.422%,10.631%,8.164%,累
三明烟区;主成分分析;土壤肥力
Chinese Agricultural Science Bulletin . 2006, (
3
): 263 -263 . DOI: 10.11924/j.issn.1000-6850.0603263