NOVELTY - Special composite coated fertilizer comprises 9-10 pts. wt. sepiolite powder, 1-2 pts. wt. zinc oxide, 8-11 pts. wt. sodium polyacrylate, 17-19 pts. wt. sodium carboxymethyl cellulose, 18-21 pts. wt. lime powder, 18-23 pts. wt. potassium oxide, 12-17 pts. wt. magnesium sulfate, 1-2 pts. wt. sodium borate, 67-70 pts. wt. chicken manure, 46-51 pts. wt. corn straw, 50-54 pts. wt. cottonseed, 36-38 pts. wt. castor oil plant, 6-8 pts. wt. effective microorganisms, 7-9 pts. wt. soil improving agent and suitable quantity of water.    USE - The composite coated fertilizer is useful for promoting the growth of Chrysanthemum and differentiation of flower bud.    ADVANTAGE - The fertilizer is rich in minerals and thus improves the physical property of soil, has synergistic effect, slow-release property and long-lasting effect, promotes absorption of nutrients by plants, reduces the dosage of agrochemicals, and increases the yield of Chrysanthemum.    DETAILED DESCRIPTION - Special composite coated fertilizer comprises 9-10 pts. wt. sepiolite powder, 1-2 pts. wt. zinc oxide, 8-11 pts. wt. sodium polyacrylate, 17-19 pts. wt. sodium carboxymethyl cellulose, 18-21 pts. wt. lime powder, 18-23 pts. wt. potassium oxide, 12-17 pts. wt. magnesium sulfate, 1-2 pts. wt. sodium borate, 67-70 pts. wt. chicken manure, 46-51 pts. wt. corn straw, 50-54 pts. wt. cottonseed, 36-38 pts. wt. castor oil plant, 6-8 pts. wt. effective microorganisms, 7-9 pts. wt. soil improving agent and suitable quantity of water, where the soil improving agent comprises 10-20 pts. wt. medical stone powder, 1-2 pts. wt. nanocarbon powder, 4-5 pts. wt. gellan gum, 17-19 pts. wt. acetylated monostearate, 3-4 pts. wt. yeast selenium, 2-3 pts. wt. copper, 2-3 pts. wt. zinc, 1-2 pts. wt. magnesium chloride, 2-3 pts. wt. ammonium citrate, 1-2 pts. wt. boric acid, 2-3 pts. wt. dipentaerythritol hexaacrylate, 30-40 pts. wt. vinegar and 2-3 pts. wt. borax. The soil improving agent is prepared by uniformly stirring the above components, heating the mixture to 65-75 degrees C, adding vinegar, dispersing the mixture at high speed into slurry and obtaining the product. An INDEPENDENT CLAIM is included for method of preparing the fertilizer, which involves mixing zinc oxide, potassium oxide, magnesium sulfate and sodium borate, adding suitable quantity of water, adding soil improving agent, sepiolite powder and lime powder, continuously stirring to form slurry, drying and concentrating the slurry to form granule, then uniformly mixing the sodium polyacrylate, sodium carboxymethyl cellulose and other raw materials, mixing uniformly, maintaining the water content at 43-46%, sealing, fermenting the mixture under anaerobic condition at low temperature for 21-30 days and drying to prepare the granule, mixing the obtained granules, subjecting to fluidized bed granulator with air inlet temperature of 70-100 degrees C, then dissolving sodium polyacrylate and hydroxypropyl methylcellulose in water by heating the mixture to 45-50 degrees C, spraying the mixture and coating the granules, and finally cooling and sieving to obtain the product.