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根据多年定位观测,从土壤养分状况及施肥效应等方面,对多种种植制度下的物质循环作了比较,指出仍应重视冬季的粮(油)、肥轮作及夏秋季的水旱轮作,重视有机肥料的施用.
According to the multi-year positioning observation, the material circulation under various planting systems was compared from the aspects of soil nutrient status and fertilizer effect. It was pointed out that grain and oil rotation, winter wheat rotation and summer / Application of organic fertilizer.