Organic fertilizer for preventing and treating anthracnose of pitaya and preparation method of organic fertilizer

The invention discloses an organic fertilizer for preventing and treating pitaya anthracnose and a preparation method thereof, and relates to the technical field of fertilizers, the organic fertilizer comprises the following raw materials by mass: 45%-55% of animal manure, 10%-20% of a plant auxiliary material, 10%-20% of a traditional Chinese medicine extract, 10%-15% of residue and other additives, the other additives comprise the following raw materials in percentage by mass: 2-5% of plant ash, 2-5% of quick lime and 1-3% of a leavening agent. Traditional Chinese medicine extracts and dregs are added on the basis of a conventional organic fertilizer, the traditional Chinese medicine extracts mainly comprise clove extracts, scutellaria baicalensis extracts, radix isatidis extracts and centella asiatica extracts, and the dregs mainly comprise golden camellia dregs, camellia oleifera dregs, traditional Chinese medicine dregs and cassava dregs. The traditional Chinese medicine extracts and the dregs are matche