NOVELTY - Organic fertilizer comprises 34-42 pts. wt. chicken manure, 24-38 pts. wt. pig manure, 25-30 pts. wt. dairy manure, 24-28 pts. wt. vermicompost, 18-20 pts. wt. lime powder, 7-15 pts. wt. turfgrass, 10-12 pts. wt. corn, 8-12 pts. wt. potassium sulfate, 6-8 pts. wt. rice straw, 6-9 pts. wt. urea, 4-6 pts. wt. cottonseed cake, 4-8 pts. wt. plant ash, 3-4 pts. wt. ferrous sulfate, 3-4 pts. wt. effective microorganisms (EM), 4-5 pts. wt. soil modifying agent, and water (required amount).    USE - The organic fertilizer is useful for protecting plant from diseases and insect pest infestation.    ADVANTAGE - The fertilizer is simple to prepare, cost-effective and suitable for large-scale production.    DETAILED DESCRIPTION - Organic fertilizer 34-42 pts. wt. chicken manure, 24-38 pts. wt. pig manure, 25-30 pts. wt. dairy manure, 24-28 pts. wt. vermicompost, 18-20 pts. wt. lime powder, 7-15 pts. wt. turfgrass, 10-12 pts. wt. corn, 8-12 pts. wt. potassium sulfate, 6-8 pts. wt. rice straw, 6-9 pts. wt. urea, 4-6 pts. wt. cottonseed cake, 4-8 pts. wt. plant ash, 3-4 pts. wt. ferrous sulfate, 3-4 pts. wt. effective microorganisms (EM), 4-5 pts. wt. soil modifying agent, and water (required amount). The soil modifying agent comprises 45-55 pts. wt. bamboo charcoal, 6-8 pts. wt. polyvinyl alcohol, 5-8 pts. wt. honeycomb, 12-18 pts. wt. sawdust, 5-7 pts. wt. medical stone, 5-6 pts. wt. lily, 3-5 pts. wt. green tea, 4-6 pts. wt. watermelon peel, 3-4 pts. wt. vinegar residue, 2-3 pts. wt. folium artemisiae argyi, and 4-7 pts. wt. wild grape vine. The soil modifying agent is prepared by (a) mixing folium artemisiae argyi and wild grape vine, pulping mixture, filtering slurry, removing filter residue, and collecting filtrate, (b) roasting remaining materials except vinegar residue and bamboo charcoal, crushing roasted material into powder, pouring filtrate of step (a) to the powder, mixing added materials at high temperature, adding bamboo charcoal and vinegar residue to mixture, mixing added materials, granulating mixture, drying granules, and crushing dried granules. An INDEPENDENT CLAIM is included for method for preparing the organic fertilizer, which involves (a) mixing chicken manure, pig manure, dairy manure, vermicompost and turfgrass, drying mixture, crushing dried material, adding water, inoculating EM to mixture, fermenting the mixture for 20-30 days, drying fermented product, and crushing dried material, (b) boiling corn and cottonseed cake in water for 50-70 minutes, adding plant ash and lime powder to the water, spray drying mixture for 5-10 minutes, granulating product, and drying granules, (c) mixing urea, potassium sulfate and ferrous sulfate, and crushing mixture into powder, and (d) mixing products of steps (a), (b) and (c) and remaining materials to obtain product.