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Evaluation of nitrogen fixation using N-15 dilution methods and economy of a maize-tepary bean intercrop farming system in semi-arid SE-Kenya 会议论文
会议名称: Biannual Meeting on Advances in Integrated Soil Fertility Management in Sub-Saharan Africa - Challenges and Opportunities. 会议地点: Yaounde, CAMEROON. 会议日期: MAY, 2004
作者:  Shisanya, Chris A.;  Gitonga, Nkanata M.
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N-15 dilution methods  Kenya  intercropping  maize  Tepary bean