“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	polar heliostat polar homology polar hyperbola polar hyperplane polar hypersurface polar ice core drilling polarimeter polarimetric polarimetric calibration polarimetric coherency matrix polarimetric covariance matrix polarimetric filtering polarimetric in optic fiber polarimetric radial-velocity-meter polarimetric SAR channel calibration polarimetric SAR cross-talk calibration polarimetric SAR interferometry，PolInSAR polarimetric SAR phase calibration polarimetric scattering matrix polarimetric scattering vector polarimetric sensor calibration polarimetric speedometer polarimetric standard polarimetric standard star polarimetric target decomposition

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