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以香菇菌糠为底肥,以种植玉米的土壤为研究对象,研究了菌糠不同施用量(0、2 500、5 000、7 500和10 000 kg/hm2)对土壤孔隙度的改良效果。结果表明:施用菌糠改良土壤孔隙度效果良好,随着菌糠施用量由0增加到10 000 kg/hm2,土壤孔隙度由40.0%增加到54.8%,处理间差异达到了极显著水平。在该土壤上种植的玉米产量和品质均有所提高,施用香菇菌糠改良粘黄土土壤孔隙度是可行的。
Taking mushrooms bran as basal fertilizer and corn planting soil as the research object, the effects of the different branching rates (0,2 500,5 000,7 500 and 10 000 kg / hm2) on soil porosity were studied. The results showed that the application of chaff bran improved soil porosity, with the amount of fungus bran increased from 0 to 10 000 kg / hm2 and the porosity of soil increased from 40.0% to 54.8%, the difference between treatments reached extremely significant level. The yield and quality of maize planted on this soil all increased. It is feasible to apply the mushroom fungus bran to improve the porosity of the loess soil.