Dragon fruit organic fertilizer and preparation method thereof

The invention is applied to the technical field of agricultural planting, and provides a dragon fruit organic fertilizer and a preparation method thereof. The method comprises the following steps: weighing raw materials in parts by weight, putting peanut cakes, soybean powder, fish meal, molasses and water into a fermentation tank for stirring and mixing; adding a fermentation microbial agent to the fermentation tank, performing aerobic fermentation for 24-48 h, and then performing facultative fermentation for 4-6 d to obtain a semi-finished liquid organic fertilizer; and mixing a functional bacterial liquid, fulvic acid potassium salt and 70-90 parts by weight of the semi-finished liquid organic fertilizer to obtain the organic fertilizer. Peanut cakes, soybean powder, fish meal and molasses are used as main fermentation organic matters, and combination of aerobic fermentation and facultative fermentation is carried out, so that various microorganisms in the mixture can be rapidly propagated, and the organic