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Effects of Contour Hedgerows of Nitrogen Fixing Plants on Soil Fertility and Yields of Sloping Croplands in a Dry Valley of the Jinsha River,China 会议论文
Proceedings of an international symposium held May 21 to 24, 2001 in Kathmandu, Nepal, Kathmandu, 2001-05-21
Sun Hui; Tang Ya; Wang Chunming; Chen Keming
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