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- W2375884600 abstract "86 soil samples that collected from Henan Luoning tobacco -growing areas were taken as experimental materials.The relationship between the contents of soil organic matter and other main fertility factors in tobacco-growing soils was studied by the methods of stepwise -regression -analysis,partial correlation analysis and grey correlation analysis.The results showed as follows:(1) The most of the soils in Luoning tobacco-growing areas fit the conditions that planting high quality tobacco,but the contents of soil organic matter,total N and available P were a little absent.(2) Equation regression for the soil organic matter and other main fertility factors was established by the multiple linear stepwise regression analysis method,which was tested by obviousness method and all results reached absolutely significance levels.(3) The results of partial correlation analysis and grey correlation analysis indicated that the contents of soil organic matter showed significantly positive correlations with total N,alkali -hydrolytic N and available P,extremely negative correlation with pH,and no significant correlation with available K.(4) The correlation order was alkali-hydrolytic Ntotal Navailable PpHavailable K." @default.
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- W2375884600 date "2010-01-01" @default.
- W2375884600 modified "2023-09-24" @default.
- W2375884600 title "Relationship between the Content of Soil Organic Matter and Other Main Fertility Factors in Tobacco-growing Areas of Luoning" @default.
- W2375884600 hasPublicationYear "2010" @default.
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