为探索EM菌对秀珍菇菌糠堆肥发酵过程的影响,研究了以EM菌作为促进剂的秀珍菇菌糠堆肥发酵63 d期间的温度、pH、TOC、N、P、K、C/N、总养分(N+P2 O5+K2 O)和重金属Cu、Zn、Fe含量的动态变化规律.结果表明,t-test统计分析显示,试验组(添加EM菌)和对照组(未添加EM菌)的堆肥发酵过程温度、N、P、K、C/N、总养分和重金属Cu含量动态变化存在显著性差异(P<0.05);而pH、TOC和Zn、Fe含量动态变化不存在显著性差异.添加EM菌的秀珍菇菌糠经过63 d堆肥发酵,最终pH为8.5,TOC含量为599.4 g/kg,N含量为25.8 g/kg,P含量为384.1 mg/kg,K含量为21951.7 mg/kg,C/N为23.3,总养分为42.29 g/kg,重金属Cu含量为22.89 mg/kg,Zn含量为78.85 mg/kg、Fe含量为1276.64 mg/kg.从研究结果可以得出,EM菌可有效促进秀珍菇菌糠堆肥腐熟.%To explore dynamic effect of EM application on composting fermentation process of spent mushroom substrate of Pleurotus geesteranus, dynamic changes of the addition of EM of P.geesteranus compost fermentation during 63 d of temperature, pH, TOC, N, P, K, C/N, total nutrient and heavy metal content of Cu , Zn, and Fe. As results, t-test statistical analysis showed that there was significant difference (P<0.05)in the temperature, N, P, K, C/N, total nutrient and heavy metal Cu content of the experimental group ( adding EM) and control group ( without adding EM ) during the composting fermentation process , except for pH , TOC, Zn and Fe .Spent mush-room substrate of P.geesteranus adding EM after 63 d of composting , the final pH value was 8.5, the content of TOC was 599.4 g/kg, the content of N was 25.8 g/kg, the content of P was 384.1 mg/kg, the content of K was 21951.7 mg/kg, C/N was 23.3, the total nutrient was 42.29 g/kg, the content of Cu was 22.89 mg/kg, the content of Zn was 78.85 mg/kg and the content of Fe was 1276.64 mg/kg.These results showed that EM could effectively promote composting fermentation process of spent mushroom substrate of P.geesteranus.
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