NOVELTY - Slow release coated fertilizer comprises coal powder, sodium pyrophosphate, ammonium citrate, borax, sodium phosphate, organic chelated titanium, glucose, calcium superphosphate, corn straw, corncob powder, polyvinyl alcohol, tobacco stems, effective microorganism inoculants, soil modifying agent, and water.    USE - The slow release coated fertilizer is useful for promoting nutrient absorption in corn plant.    ADVANTAGE - The slow release coated fertilizer improves yield of corn plant.    DETAILED DESCRIPTION - Slow release coated fertilizer comprises 9-11 pts. wt. coal powder, 14-17 pts. wt. sodium pyrophosphate, 1-2 pts. wt. ammonium citrate, 1-2 pts. wt. borax, 15-18 pts. wt. sodium phosphate, 3-5 pts. wt. organic chelated titanium, 2-4 pts. wt. glucose, 10-13 pts. wt. calcium superphosphate, 60-65 pts. wt. corn straw, 54-58 pts. wt. corncob powder, 19-21 pts. wt. polyvinyl alcohol, 43-46 pts. wt. tobacco stems, 5-7 pts. wt. effective microorganism inoculants, 7-9 pts. wt. soil modifying agent, and proper amount of water. The soil modifying agent comprises 10-20 pts. wt. lignite powder, 1-2 pts. wt. nanocarbon powder, 4-5 pts. wt. polymeric ferric sulfate, 17-19 pts. wt. pentaerythritol triacrylate, 3-4 pts. wt. selenium-rich yeast, 2-3 pts. wt. copper, 2-3 pts. wt. zinc gluconate, 1-2 pts. wt. medical 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. sodium tripolyphosphate, and 1-2 pts. wt. ascorbic acid. The soil modifying agent is prepared by uniformly mixing pentaerythritol triacrylate, dipentaerythritol hexaacrylate, lignite powder, nanocarbon powder and Eucalyptus oil, stirring the mixture and then heating to 65-75 degrees C, adding the remaining ingredients with stirring followed by adding vinegar, and dispersing at high speed into slurry. An INDEPENDENT CLAIM is included for preparing the fertilizer comprising (a) mixing sodium pyrophosphate, ammonium citrate, borax, sodium phosphate, organic chelated titanium, glucose and calcium superphosphate, adding warm water and adding the soil modifying agent with continuous stirring, dispersing the mixture into slurry and then concentrating and drying to form granules, (b) mixing the remaining components other than polyvinyl alcohol, maintaining the moisture content to 43-45%, stirring the mixture, sealing and then fermenting under anaerobic condition at room temperature for 24-30 days, where the mixture is turned once for every 4-5 days, drying the fermentation product and then granulating, and (c) mixing the products of steps (a) and (b) into a fluidized bed coating machine, controlling an air inlet temperature of the machine to 75-100 degrees C and an inlet pressure to maintain the particles in suspension state, dissolving polyvinyl alcohol in 2 times the amount of water, heating to 45-50 degrees C, spraying to the mixture, cooling and then sieving.