Organic bacterial fertilizer for vinasse as well as preparation method and application of organic bacterial fertilizer

The invention provides a vinasse organic bacterial fertilizer, a preparation method and application thereof, and belongs to the technical field of vinasse fertilizer processing. Through precise regulation and control of the composting process and in combination with secondary fermentation in which the specific fungicide participates, the obtained vinasse organic bacterial fertilizer has the effect of improving saline-alkali soil, and the problem that the fertilizer efficiency of the vinasse fertilizer needs to be improved in the prior art is solved. The preparation process provided by the invention not only can fully decompose the materials, but also can retain a certain content of organic acid in the vinasse, so that the physical and chemical properties of the saline-alkali soil are improved by combining with hydroxyl ions in the saline-alkali soil; after composting, a specific bacterial agent is added for secondary fermentation, so that the quantity of viable bacteria in the finished bacterial fertilizer ca