本实验研究了用食用菌菌糠做底肥改良保护地土壤pH值。以出菇后的平菇菌糠为底肥,用量分为五个等级(0、20、40、60、80kg/100m2),每个等级有三组对比。土壤pH值用pH值测试仪测定。结果衷明:随着施用菌糠量的增加,土壤的pH值由7.86减小到7.80,区组间和处理间都不具有显著差异。结论为菌糠不能良好的改良保护地土壤的pH值。 In this experiment, the edible fungus bran made base fertilizer to improve the protection of the soil pH value. After fruiting mushroom mushroom bran as base fertilizer, the amount is divided into five grades (0,20,40,60,80 kg / 100m2), each grade has three groups of contrast. Soil pH was measured with a pH tester. The result is clear: With the increase of the amount of bran, the pH value of the soil decreased from 7.86 to 7.80, and there was no significant difference between the two groups. The conclusion is that the fungus bran can not improve the pH value of the soil well.