NOVELTY - Improvement of organic fertilizer preparation method includes adding (S1) manure, straw, and effective microorganism (EM) microbial inoculum into the fermentation tank, adding water, stirring uniformly, fermenting, adding soapstone, kaolin, silicon hydroxyapatite, fish bone meal, rice hull powder, traditional Chinese medicine slag, EM microbial inoculum, and protein powder to obtain a pre-fermentation material, dehydrating (S2), stacking (S3), aging, dehydrating to obtain a secondary fermented material, and granulating (S4) and drying to obtain the organic fertilizer.    USE - Method for improving preparation of organic fertilizer (claimed).    ADVANTAGE - The method has high efficiency, and can improve soil effectively.    DETAILED DESCRIPTION - Improvement of organic fertilizer preparation method comprises:    (A) adding (S1) 40-70 pts. wt. manure, 20-50 pts. wt. straw, 0.2-0.8 pts. wt. EM microbial inoculum into the fermentation tank, adding water to the system water content of 35-45 wt.%, stirring uniformly, fermenting at 40-45 degrees C, turning once every 10-20 hours, turning 5-10 times, adding 20-40 pts. wt. soapstone, 20-30 pts. wt. kaolin, 5-15 pts. wt. silicon hydroxyapatite, 20-30 pts. wt. fish bone meal, 8-14 pts. wt. rice hull powder, 10-18 pts. wt. traditional Chinese medicine slag, 0.1-0.5 pts. wt. EM microbial inoculum, 10-25 pts. wt. protein powder for continuous fermentation, turning once every 5-10 hours, and turning 2-4 times to obtain a pre-fermentation material;    (B) dehydrating (S2) the pre-fermentation material to a water content of 20-26 wt.%, adding 0.1-0.6 pts. wt. VT microbes, carrying out fermentation at 55-67 degrees C, every 1-2 days turning in sequence 5-8 times, turning every one time fermentation material to air and oxygen to obtain fermented material;    (C) stacking (S3) the first fermentation material to 2 m wide and 1 m high secondary fermentation, turning once, turning 5-10 times, adding 20-40 pts. wt. straw ash every 1-2 days, 5-10 pts. wt. pulverized coal ash, 2-8 pts. wt. nanocarbon powder, 5-15 pts. wt. glass, and 2-7 pts. wt. epoxy resin, stirring uniformly, aging for 2-5 days, dehydrating to a water content of 8-14wt% to obtain a secondary fermented material; and    (D) granulating (S4) the second fermented material, further granulating at second time with amino acid hydrolysis liquid for spraying treatment, amino acid in hydrolysis liquid of amino acid content is 20-30 wt.%, and drying to obtain the organic fertilizer.    DESCRIPTION OF DRAWING(S) - The drawing is a schematic diagram of the method for improving preparation of organic fertilizer.    Adding step (S1)    Dehydrating step (S2)    Stacking step (S3)    Granulating step (S4)