“theory of nutrient returns”的概念、定义、翻译、参考文献-科学参考

单词	theory of nutrient returns
释义	theory of nutrient returns Encyclopedia 农学[肥料养分效率]释 theory of nutrient returns养分归还学说为维持土壤肥力而必须归还作物从土壤中取走养分的理论。即植物收获物从土壤带走的养分，必需“返还”至土壤才能维持土地生产力。
随便看	finite memory finite memory channel finite method finite mixed regression model finite model finite module finite morphism finite morphism of curves finite multiplier finiteness finiteness condition finiteness obstruction finiteness principle finiteness theorem finiteness theorems finite net finite network finite nilpotent group finite norm finite normalizing extension finite number finite object point finite open covering finite order finite ordinal

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