Method for preparing organic compound fertilizer by combining hermetia illucens frass with trichoderma spp.

Abstract

The invention relates to a method for preparing an organic compound fertilizer by combining Hermetia illucens frass with Trichoderma spp., including the steps: S1: pretreating the Hermetia illucens frass to obtain pretreated Hermetia illucens frass; S2: mixing the pretreated Hermetia illucens frass with an auxiliary material to obtain a mixture, and adjusting the moisture content of the mixture; S3: inoculating the Trichoderma spp. into the mixture for aerobic fermentation to obtain a fermentation product; S4: sieving, fortifying and granulating the fermentation product to obtain the organic compound fertilizer, where the Hermetia illucens frass provides organic matters and nutrient elements, the Trichoderma spp. promotes the decomposition of the organic matters during the fermentation and endows the organic compound fertilizer with a biological control function, and the organic compound fertilizer achieves nutrition supply and disease prevention and control functions under a synergistic effect of the Hermetia illucens frass and the Trichoderma spp.