“soil farming system”的概念、定义、翻译、参考文献-科学参考

单词	soil farming system
释义	soil farming system Encyclopedia 农学土壤耕作制度释 soil farming system土壤耕作制度根据植物（作物）对土壤的要求和土壤特性，采用机械的或非机械的方法改善土壤耕层结构和理化性状，为达到提高土壤肥力、消灭农田病虫杂草的目的而采取的一系列耕作措施体系的总称。是土壤管理制度的重要组成部分。
随便看	variable thrust rocket engine variable thrust rocket motor variable time scale variable transformation variable ultrafast photographic shutter variable ultraviolet object variable valve lift variable valve mechanism variable valve timing variable valve timing system variable-velocity star variable voltage variable water flow central air-conditioning system variable X-ray source variable γ-ray source variace-covariance matrix variance variance analysis variance analysis of one-way grouping data variance analysis of subgroup data in group variance analysis of two-way data variance-balanced block design variance between classes variance between clusters variance between laboratories

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