“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	periodic electrostatic focusing periodic element periodic error periodic firing periodic flow periodic fluctuation periodic fraction periodic free resolution periodic function periodic geodesic periodic group periodic heat flow method periodic inequality periodic infinite decimal fraction periodic inspection periodic instability periodic in the mean periodicity periodicity and symmetry of surface structure periodicity characteristic periodicity factor periodicity interval periodicity modulus periodicity of a function periodicity of a sequence

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