Zhang Da-ke, Wang Yu-jie, Yie Hai-jiang. The Model on Selecting Main Fertility Factor in Grading Paddy Soil Fertility[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 1997, 13(2): 91-95.
    Citation: Zhang Da-ke, Wang Yu-jie, Yie Hai-jiang. The Model on Selecting Main Fertility Factor in Grading Paddy Soil Fertility[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 1997, 13(2): 91-95.
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    The Model on Selecting Main Fertility Factor in Grading Paddy Soil Fertility

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    • In this paper , According to the theories of correlation analysis in principal component analysis, a model on selecting main factor in grading paddy soil fertility was built . An application example was given, and the results showed that the model was in good agreement with the practice.
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