NOVELTY - An iodine-enriched special crop fertilizer comprises e.g. 34-42 pts. wt. of lime, 20-30 pts. wt. of colza cake powder, 12-18 pts. wt. of peanut cake powder, 4-5 pts. wt. of citric acid, 3-4 pts. wt. of copper powder, 4-6 pts. wt. of trimeric sodium phosphate, 3-4 pts. wt. of EM microbial inoculum, 4-5 pts. wt. of soil modifying agent, and water. The soil modifying agent comprises e.g. 45-55 pts. wt. of bamboo charcoal, 6-8 pts. wt. of polyvinyl alcohol, 5-7 pts. wt. of medical stone, 3-5 pts. wt. of green tea, 4-6 pts. wt. of watermelon peel and 4-7 pts. wt. wild grape vine.    USE - As iodine-enriched special crop fertilizer (claimed) for increasing production of crops.    ADVANTAGE - The fertilizer improves nutrition element needs of crops, improves quality of crops, provides high yield of crop, reduces fertilizer cost, has simple and easy operation, provides good product quality, does not cause environmental pollution, improves water holding capacity and fertility of soil, plays a role of soil modifying agent, and is suitable for popularization and application of large range.    DETAILED DESCRIPTION - An iodine-enriched special crop fertilizer comprises following raw materials: 34-42 pts. wt. of lime, 20-30 pts. wt. of colza cake powder, 12-18 pts. wt. of peanut cake powder, 10-13 pts. wt. of canal mud, 8-10 pts. wt. of laver, 6-8 pts. wt. of ammonium hydrogen carbonate, 6-8 pts. wt. of kelp, 6-8 pts. wt. of tartaric acid, 4-5 pts. wt. of citric acid, 3-6 pts. wt. of potassium sulfate powder, 3-4 pts. wt. of copper powder, 4-6 pts. wt. of trimeric sodium phosphate, 5-6 pts. wt. of zinc sulfate, 3-4 pts. wt. of EM microbial inoculum, 4-5 pts. wt. of soil modifying agent, and proper amount of water. The soil modifying agent comprises following raw materials: 45-55 pts. wt. of bamboo charcoal, 6-8 pts. wt. of polyvinyl alcohol, 5-8 pts. wt. of nidus vespae, 12-18 pts. wt. of pine wood pot, 4-6 pts. wt. of husk, 5-7 pts. wt. of medical stone, 5-6 pts. wt. of aquaculture waste, 3-5 pts. wt. of green tea, 4-6 pts. wt. of watermelon peel, 2-3 pts. wt. of Beacon Nutshell, 3-4 pts. wt. of rubber, 2-3 pts. wt. of vinegar dregs, 2-4 pts. wt. of folium artemisiae argyi and 4-7 pts. wt. wild grape vine. The preparation method involves: mixing rubber, folium artemisiae argyi and wild grape into pulp, filtering to remove filter residue, leaving filtered liquid, taking pine sawdust, Beacon Nutshell, medical stone, and aquaculture waste, mixing, grinding into powder, filtering liquid, subjecting to high temperature drying, taking dried watermelon peel and nidus vespae, putting green tea leaves in a bamboo charcoal, baking for 20-40 minutes, and then mixing the formed material and silicon adhesive, crushing vinegar dregs, mixing to form mixed powder, mixing the granule and powder, and mixing uniformly the remaining material.