“barren cropping”的概念、定义、翻译、参考文献-科学参考

单词	barren cropping
释义	barren cropping Encyclopedia 农学瘦茬释 barren cropping瘦茬前茬作物对土壤有效养分消耗多，后茬作物必须大量施肥才能生长良好的一类茬口。又称白茬。
随便看	relative extension relative extremum relative eye relief relative feed value relative field relative fit relative fluctuation relative fluctuation of density relative focal length relative frame of reference relative frequence relative frequency relative Frobenius morphism relative functor relative geometry relative gradient relative gravity survey relative group relative growth relative growth rate relative homeomorphism relative homological algebra relative homology relative homology group relative homology theory

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