“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	sample process sample proof sample proportion sample quantile sample quartile sampler sample range sample raw moment sample regression coefficient sample representativeness sample residual dispersion sample rotation sampler; sampling head samples calculation sample site sample size Sample size estimation sample skewness sample space sample space ordering sample space ranking sample-specific nature sample, specimen sample-splitter sample splitting

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