论文部分内容阅读
为了研究接种外源微生物菌剂对园林废弃物的影响,试验采用高温好氧堆肥系统设计了接种白腐菌、放线菌、白腐菌+放线菌和对照(不接种)4个处理,探讨了不同处理的堆肥过程中堆体的温度、pH值、电导率(EC)值、发芽指数(GI)、根长和发芽率的变化及在电子显微镜下的结构变化。结果表明:接种白腐菌+放线菌的堆体温度高于其他处理,且高温期维持时间最长(14 d);不同处理对EC和pH的影响较小;接种白腐菌+放线菌的处理在35 d(GI>80%)达到腐熟,缩短了堆体的腐熟期5~15 d;接种白腐菌处理的根长较其他处理长。扫描电镜显示,接种白腐菌+放线菌处理堆体中木质素和纤维素的结构变化明显,降解程度较其他处理更彻底。
In order to study the impact of inoculation of foreign microbial inoculum on the garden wastes, four treatments of inoculation with white rot fungi, actinomycetes, white rot fungi + actinomycetes and control (non-inoculation) were designed using high temperature aerobic composting system. The changes of temperature, pH value, conductivity (EC) value, germination index (GI), root length and germination rate of the composting process and the structure change under the electron microscope were discussed. The results showed that the temperature of pile body inoculated with white rot fungi and actinomycetes was higher than that of other treatments, and the longest incubation time in high temperature was 14 days. The effects of different treatments on EC and pH were little. The treatment of bacteria reached maturity at 35 days (GI> 80%), shortening the maturity of the pile for 5 to 15 days. The root length of the white rot fungus was longer than that of other treatments. Scanning electron microscopy showed that inoculation of white rot fungi + actinomycetes reactor lignin and cellulose structure changes significantly, the degree of degradation more thoroughly than other treatments.