Straw degradation and acidification fungicide and preparation method thereof

The invention provides a straw degradation and acidification fungicide and a preparation method thereof, and belongs to the biological technical field. The straw degradation and acidification fungicide comprises trichoderma reesei fermentation liquor, trichoderma viride fermentation liquor, acetobacter aceti fermentation liquor and saccharomycetes fermentation liquor, wherein the volume ratio of the trichoderma reesei fermentation liquor to the trichoderma viride fermentation liquor to the acetobacter aceti fermentation liquor to the saccharomycetes fermentation liquor is 3: 3: 2: 2. The fungicide makes effective use of hydrolase which is produced by mildew and can efficiently hydrolyze cellulose and hemicelluloses and is matched with yeast strains and bacillus aceticus to quickly transform straw substances into organic acid such as acetic acid for producing methane bacteria; by the synergistic effect, the gas producing rate is increased, the methane fermenting time is shortened, the equipment utilization rat