Transformation in the Microbial Community and of Organic Substrate During Aerobic Fermentation of Manure

Abstract

The results of a study of microbiological processes in controlled aerobic fermentation of litter dung was carried out. It was shown that the introduction of a microbial inoculum into the fermentable substrate allows to obtain an effective biofertilizer. It was found that in the process of transformation of organic matter a specific bacterial complex is formed, which significantly differs in quality composition from the microflora of the litter dung. The change in the composition of the microbial community affected the processes of humification and led to an increase in the proportion of humic acids by more than 3 times in comparison with initial substrate. Thus, along with the active processes of mineralization of organic matter, humification processes occur simultaneously, which is manifested in the formation and accumulation of humic acids. This allows us to justify the feasibility of the developed technology not only for the agro-industrial complex, but also for the microbiological processing of a wide range of organic waste into effective biofertilizers.