Coating agent for microbial fertilizer and preparation method thereof

The invention discloses a coating agent for a microbial fertilizer, and relates to the technical field of microbial fertilizer coating agents, the coating agent comprises the following components by weight: 2-8 parts of sucrose, 0.1-0.5 part of ascorbic acid, 1-5 parts of peptone, 5-10 parts of collagen gel, 0.5-1 part of sodium lactate, 0.8-1.5 parts of zinc chloride, 0.8-1.5 parts of glycerin, and 1-2 parts of agar. The problems that after the microbial fertilizer is coated, the microbial activity is seriously reduced, the storage time of the microbial fertilizer is shortened, the microbial fertilizer is difficult to store, and then large-scale popularization is difficult are solved. 本发明公开了一种用于微生物肥料的包膜剂，按重量分配比包括有以下组分：蔗糖2-8份、抗坏亚酸0.1-0.5份、蛋白胨1-5份、胶原蛋白凝胶5-10份、乳酸钠0.5-1份、氯化锌0.8-1.5份、甘油0.8-1.5份、琼脂1-2份，本发明涉及微生物肥料包膜剂技术领域。本发明，解决微生物肥料包膜后，微生物活性严重下降，使得微生物肥料存储时间变短，使得微生物肥料难易存储，进而难易大范围推广的问题。