In order to resolve the problems of slow straw decomposition,crop pests and lack of nitrogen during the straw returning,indoor soil columns experiments were conducted and effects of the soil decomposition rates of powdered straw with different C/N ratios on soil bulk density,soil water holding capacity were analyzed.The results showed that the powdered size of straw had little effect on its decomposition rate in the short term,while the decomposition rate of powdered straw was significantly higher than that...
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