“evaluation index system for cultivated land fertility”的概念、定义、翻译、参考文献-科学参考

单词	evaluation index system for cultivated land fertility
释义	evaluation index system for cultivated land fertility Encyclopedia 农学地力分级法释 evaluation index system for cultivated land fertility地力分级法利用土壤养分测试资料和田间试验结果，将土壤肥力分成若干等级，根据养分丰缺等级确定施肥建议的方法。
随便看	oriented basis oriented bordism oriented boundary oriented bundle oriented cell oriented chain complex oriented circle oriented circuit oriented cobordant manifold oriented cobordism oriented cobordism class oriented cobordism group oriented cobordism theory oriented cohomology theory oriented complex oriented contour oriented curve oriented cycle oriented direction oriented distance oriented element oriented enzymatic hydrolysis oriented fibration oriented figure oriented frame

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