Microbial agent for promoting carbon emission reduction in rice straw returning

The invention discloses a microbial agent for promoting carbon emission reduction in rice straw returning, and belongs to the field of environmental protection. The invention aims at the defects of long cycle and slow decomposition of a rice straw returning technology, and the problems of unstable carbon sequestration, poor carbon emission reduction effect and the like of the existing microbial agent. The microbial agent disclosed by the invention is prepared from the following components in percentage by weight: 2%-20% of bacillus subtilis, 2%-20% of bacillus cereus, 2%-20% of bacillus licheniformis, 1%-10% of lactic acid bacteria, 1%-10% of saccharomycetes, 2%-20% of acetobacter pasteurianus and 5%-30% of photosynthetic bacteria. According to the microbial agent disclosed by the invention, various bacilli with a strong cellulose degradation effect are selected as a complex microbial agent main body, and are matched with beneficial bacteria such as lactic acid bacteria, saccharomycetes, acetobacter pasteuria