Ley-farming and a long-term agricultural policy

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作者
Stapledon, RG
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10.1038/142597a0
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O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
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07 ; 0710 ; 09 ;
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页码:597 / 599
页数:3
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