“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	right-hand lower derivative right-hand lower limit right-hand parenthesis right hand rule right-hand rule right-hand screw rule right-hand side right-hand side problem right hand spinors right-hand upper derivative right-hand upper limit right helicoid right hereditary ring right heredity right Hermite ring right homotopy inverse right hyperbola right ideal right ideal of an algebra right identity right identity element righting couple righting lever righting reflex right injective dimension

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