Special compound biological fertilizer for promoting growth of peppers and preparation method of special compound biological fertilizer

The invention discloses a special composite biological fertilizer for promoting growth of pepper, which is prepared from the following raw materials: fermented and decomposed manure organic raw material, urea, calcium magnesium phosphate fertilizer, potassium sulfate, attapulgite, humic acid, polyvinyl alcohol, isocyanate, initiator, gamma-polyglutamic acid, glutaraldehyde, nano silicon dioxide and complex microbial inoculant. The mass ratio of the fermented and decomposed manure organic raw material to the urea to the calcium magnesium phosphate fertilizer to the potassium sulfate to the attapulgite to the humic acid to the polyvinyl alcohol to the isocyanate to the initiator to the gamma-polyglutamic acid to the glutaraldehyde to the nano silicon dioxide to the complex microbial inoculant is (35 to 40) to (15 to 20) to (10 to 13) to (15 to 18) to (6 to 10) to (5 to 8) to (2 to 4) to (0.5 to 0.8) to (0.05 to 0.5) to (0.5 to 1) to (0.1 to 0.5) to (0.6 to 1.2) to (0.5 to 1). The invention discloses a preparati