Organic fertilizer for lotus root planting and preparation method thereof

The invention discloses organic fertilizer for lotus root planting. The organic fertilizer is prepared from, by mass, 25-35% of thoroughly-decomposed corn straw, 25-35% of thoroughly-decomposed rice straw, 25-35% of thoroughly-decomposed weed and 5-15% of chicken manure. A preparation method of the organic fertilizer comprises the specific steps that the thoroughly-decomposed corn straw, the thoroughly-decomposed rice straw and the thoroughly-decomposed weed are smashed through a smashing machine into powder, the chicken manure is dried through a drying machine, and the smashed thoroughly-decomposed corn straw powder, thoroughly-decomposed rice straw powder and thoroughly-decomposed weed powder and the dried chicken manure are added into a stirring machine, evenly stirred and mixed and packaged. The organic fertilizer has the advantages of being good in environmental protection effect and the like.