An evaluation of grazing value of maize and companion crops for wintering lactating ewes

于Pastoral systems in marginal environments
著者：
E.A. van Zyl 2School of Agriculture & Environmental Science, University of the North, Private Bag X1106, Sovenga, 0727, South Africa

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and
C.S. Dannhauser

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类型:
章节
Page Range:
117
DOI:
https://doi.org/10.3920/9789086865574_022

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