Corrosion-promoting and nitrogen-preserving microbial inoculum suitable for agricultural straw compost and preparation and application thereof

The invention discloses a decay-promoting and nitrogen-preserving microbial inoculum suitable for agricultural waste straw compost as well as preparation and application of the decay-promoting and nitrogen-preserving microbial inoculum. By optimizing the culture conditions and compounding proportion of various bacteria, the decay-promoting and nitrogen-preserving microbial inoculum for agricultural waste straw compost is finally obtained, and the microbial inoculum has the characteristics of simple composition, no antagonism among strains, stable effect, strong enzyme activity, large number of viable bacteria, nitrogen conservation and the like, and has a good application prospect when being applied to compost decay of agricultural organic solid waste straw. The total mass of nitrogen, the content of organic matters, the number of nitrogen metabolism functional florae and the like are obviously improved; the rotten fertilizer is used for tomato planting, the germination rate of tomatoes is remarkably increase