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论述了作物根茬留田可以增强土壤的生物活性,促进土壤中的生物化学过程,从而更新土壤中已渐老化的腐殖质,保持地力常新。这种培肥效应,改善了土壤的物理性状和增强土壤的保持水土和保肥供肥性能,增加了作物的产量。连续根茬留田还有迭加效应。
It is discussed that the crop stubble remediation can enhance the biological activity of the soil and promote the biochemical process in the soil so as to renew the aged humus in the soil and keep the soil strength constant. This fertilizer effect, improving the physical properties of soil and soil to maintain soil and water conservation and fertilizer and fertilizer performance, increased crop yield. Continuous root stubble left field there is a superposition effect.