“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	spatial data query spatial data registration spatial data reliability spatial data security spatial data steganography spatial data structure spatial data trustability spatial data uncertainty spatial data updating spatial data usability spatial data visualization spatial data warehouse spatial decision support spatial decision support systems spatial definition spatial deflecting prism spatial degeneration spatial demand curve spatial density of energy spatial density of force spatial dependence spatial dependence model spatial dependent rule spatial deprivation spatial derivative

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