Method for preparing biological compound fertilizer from stems and leaves of salvia miltiorrhiza

The invention provides a method for preparing biological compound fertilizer from stems and leaves of salvia miltiorrhiza. The method comprises steps as follows: firstly, the stems and leaves of the salvia miltiorrhiza are cut into sections firstly, a hypochlorous acid solution and a nutrient solution are sprayed on surfaces of the stems and leaves of the salvia miltiorrhiza, and water content ofthe stems and leaves of the salvia miltiorrhiza is adjusted; then, with the adoption of a two-stage fermentation method, a large quantity of lignin degrading bacteria are adopted to decompose refractory lignin in salvia miltiorrhiza dregs through first-stage fermentation, cellulose and hemicellulose are sufficiently exposed, secondary fermentation and deep fermentation are facilitated, metabolic products such as protein, fat and the like in primary fermentation products are utilized for providing energy for the secondary fermentation, necessary nutrients and rapid start conditions are providedfor decomposition of the