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- W2389009271 abstract "In this paper,the importance of soil fertility in the black soil area is discussed,and the construction of assessment indexes systems and methods of the black soil fertility are analyzed.Furthermore,scientific assessment systems and methods of the soil fertility are determined,which greatly improved the processes for changing and restoring fertility situations of the black soil in theory and reality,realizing sustainable development,and assuring optimal cycle of ecosystem in the black soil area." @default.
- W2389009271 created "2016-06-24" @default.
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- W2389009271 date "2004-01-01" @default.
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- W2389009271 title "Study of evaluation systems of the black soil fertility" @default.
- W2389009271 hasPublicationYear "2004" @default.
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