The theme of the 1989 agricultural symposium was " innovation in resource management ". It directs attention to the importance of technological and institutional innovation with which to conserve, as well as to increase, the productivity of the natural resource base on which agricultural development depends. In a period when many areas of the world are under pressure to increase agricultural production and/or are subject to increased ecological stress...
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详细
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1989/10/31
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出版
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8197
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1
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1
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2010/07/01
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Innovation in resource management : proceedings of the ninth agriculture sector symposium
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Agriculture