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为了比较香菇渣和平菇渣作为土壤改良剂还田对土壤的影响,进行了将不同比例的(25%,50%,75%)香菇渣和平菇渣分别添加到土壤中恒温培养100 d,每隔20 d测定其土壤中磷元素与钾元素含量的研究。结果表明:香菇渣和平菇渣作为土壤调理剂对土壤肥力有显著的改善作用,尤其对土壤中速效钾和全磷含量的增加,随着食用菌渣添加量的增加和培养时间的延长,速效钾和全磷含量呈现持续上升的趋势,说明食用菌渣对提高土壤速效钾和磷有明显效果;土壤中添加食用菌渣后还适当降低了土壤的pH值,从培养20 d时的pH=8.0左右下降到100 d后的pH=6.0左右。
In order to compare the effect of the mushroom residue and the mushroom residue on the soil as the soil amendment, the different proportions (25%, 50%, 75%) of mushroom residue and mushroom residue were added to the soil for 100 days, Determination of Phosphorus and Potassium in Soil by 20 Days. The results showed that the mushroom residue and mushroom residue could improve the soil fertility significantly as soil conditioner, especially for the increase of available potassium and total phosphorus in the soil. With the increase of the added amount of edible fungi residue and the prolongation of culture time, Potassium and total phosphorus showed a continuous upward trend, indicating that edible bacteria residue to improve soil available potassium and phosphorus have a significant effect; the addition of edible fungus residue in the soil is also appropriate to reduce the pH of the soil from the 20d when the pH = 8.0 or so after about 100 d down to pH = 6.0 or so.