NOVELTY - Coated fertilizer comprises 14-18 pts. wt. polymethyl methacrylate, 5-8 pts. wt. epoxidized soybean oil, 10-14 pts. wt. quartz powder, 13-17 pts. wt. plant ash, 16-18 pts. wt. flour, 35-40 pts. wt. lees, 75-80 pts. wt. rotten cake fertilizer, 25-27 pts. wt. urea, 18-22 pts. wt. phosphorus pentoxide, 1-2 pts. wt. zinc oxide, 8-12 pts. wt. magnesium sulfate, 1-2 pts. wt. manganese dioxide, 7-9 pts. wt. soil improving agent and balanced amount of water. Soil modifying agent comprises 10-20 pts. wt. coal powder, 1-2 pts. wt. carbon nanopowder and 4-5 pts. wt. polymeric ferric sulfate.    USE - Coated fertilizer used for providing complete nutrition to tree (claimed).    ADVANTAGE - The coated fertilizer is easy to use, promotes absorption of nutrients to plant, and has slow release effect.    DETAILED DESCRIPTION - Coated fertilizer comprises 14-18 pts. wt. polymethyl methacrylate, 5-8 pts. wt. epoxidized soybean oil, 10-14 pts. wt. quartz powder, 13-17 pts. wt. plant ash, 16-18 pts. wt. flour, 35-40 pts. wt. lees, 75-80 pts. wt. rotten cake fertilizer, 25-27 pts. wt. urea, 18-22 pts. wt. phosphorus pentoxide, 1-2 pts. wt. zinc oxide, 8-12 pts. wt. magnesium sulfate, 1-2 pts. wt. manganese dioxide, 7-9 pts. wt. soil improving agent and balanced amount of water. Soil modifying agent comprises 10-20 pts. wt. coal powder, 1-2 pts. wt. carbon nanopowder, 4-5 pts. wt. polymeric ferric sulfate, 17-19 pts. wt. methyl methacrylate, 3-4 pts. wt. selenium yeast, 2-3 pts. wt. copper, 2-3 pts. wt. zinc gluconate, 1-2 pts. wt. maifanite stone powder, 2-3 pts. wt. ammonium sulfate, 1-2 pts. wt. boric acid, 4-6 pts. wt. dipentaerythritol hexaacrylate, 30-40 pts. wt. vinegar, 2-3 pts. wt. chitosan, 1-2 pts. wt. Eucalyptus oil, 2-3 pts. wt. trimeric sodium phosphate and 1-2 pts. wt. ascorbic acid. Soil modifying agent is prepared by mixing coal powder, carbon nanopowder, methyl methacrylate and dipentaerythritol hexaacrylate in Eucalyptus oil and then stirred at 65-75 degrees C to obtain a mixture. Remaining components are mixed with the mixture and then dispersed in vinegar to obtain slurry. An INDEPENDENT CLAIM is included for a method for preparing coated fertilizer, which involves:    (A) mixing urea, phosphorus pentoxide, zinc oxide, magnesium sulfate and manganese dioxide with water and then adding remaining components (except soil modifying agent);    (B) removing polymethyl methacrylate from residue and fermenting it in a sealed container for 25-30 days under normal temperature without supplying oxygen to obtain fermented product;    (C) drying the fermented product and granulating to obtain granule; and    (D) mixing soil modifying agent with granules obtain the final product.