生物有机肥处理方式与微生物菌群关系研究
Effect of Treating Approaches on Microbial Community of Bio-organic Manure
-
摘要: 为了明确生物有机肥处理方式与微生物菌群之间的相互关系,利用添加了生物有机肥发酵菌剂的高温堆肥体系,采用生产试验和平板稀释法,调查了不同C/N、不同通风方式以及不同物料水分对有机肥发酵过程中几种常见菌群数量动态变化的影响.结果表明,在C/N为25:1,翻堆3次,初始水分65%,以后不再增加水分的条件下,有机肥发酵过程中真菌以及细菌的生长与繁殖增加,霉菌数量受到抑制.本试验将为生物有机肥发酵腐熟标准体系的建立提供参考依据.Abstract: The purpose of this study was to investigate the correlation between the treating approaches and microbial community of bio-organic Manure. The effects of different treatment methods on the microbial community dynamics of bio-organic manure added to microbial fermentation agents with production experiment method were studied. The treatment methods included C/N, ventilation system, and moisture content. The numbers of microbe were tested by conventional microorganism separation and purification method. The results showed that the best treatment methods were C:N 25:1, turning 3 times for compost and the initial moisture content of 65%, no longer increasing water. In these conditions, the numbers of fungi and bacteria of bio-organic manure were the best among all treatments, while the growth of mould was inhibited. The experiment would provide a theoretical reference for the establishment of standard system of biological organic manure fermentation.
下载: