“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	aircraft electrical system aircraft electric propulsionunit aircraft electromagnetic compatibility/electromagentic environmental effects test aircraft electromagnetic compatibility test aircraft electromagnetic emission and susceptibility tests of equipments and subsystems aircraft electromagnetic pulse test aircraft electromechanical management system test aircraft electromechanical system ground test aircraft electro-Static discharge test aircraft empennage aircraft empty weight aircraft endurance performance aircraft engine aircraft engine inspection aircraft engine manufacturing technology aircraft environmental control system aircraft environmental control system test aircraft environmental protection system test aircraft environmental test aircraft escape system test aircraft evaluation aircraft experimental aerodynamics aircraft failure condition aircraft fairing structure aircraft final assembly

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