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- W2373355612 abstract "In the paper,the principle of soil fertility and its limiting factor was introduced.In addition,the measures to maintain and rise soil fertility was put forward,research history and future going direction of soil fertility evaluation in foreign countries,the integrate evaluation for cultivated land across the world,and a direct and indirect evaluation method adapted to situation in China,summed up by He Tong-kang,a chinese soil scientist was introduced.At the end,an analysis,to aim at problems exist in soil fertility evaluation in China was conducted." @default.
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- W2373355612 date "2009-01-01" @default.
- W2373355612 modified "2023-09-25" @default.
- W2373355612 title "Progress in Soil Fertility Evaluation" @default.
- W2373355612 hasPublicationYear "2009" @default.
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