NOVELTY - Resin-coated controlled-release fertilizer is prepared using medical stone, sugarcane bagasse, peanut shell, shell powder, biogas residue, rapeseed cake, vegetable residue, microbial inoculum, potassium chloride, fulvic acid, ammonium humate, urea, calcium superphosphate, magnesium sulfate, melamine formaldehyde resin, isopropanol, sodium alkenyl-sulfonate, auxiliary agent and water.    USE - As resin-coated controlled-release fertilizer.    DETAILED DESCRIPTION - Resin-coated controlled-release fertilizer is prepared using 9-12 pts. wt. medical stone, 7-9 pts. wt. sugarcane bagasse, 10-14 pts. wt. peanut shell, 7-9 pts. wt. shell powder, 8-10 pts. wt. biogas residue, 14-17 pts. wt. rapeseed cake, 5-7 pts. wt. vegetable residue, 2-3 pts. wt. microbial inoculum, 6-8 pts. wt. potassium chloride, 4-6 pts. wt. fulvic acid, 8-10 pts. wt. ammonium humate, 9-11 pts. wt. urea, 6-7 pts. wt. calcium superphosphate, 4-6 pts. wt. magnesium sulfate, 6-7 pts. wt. melamine formaldehyde resin, 1-2 pts. wt. isopropanol, 2-3 pts. wt. sodium alkenyl-sulfonate, 5-6 pts. wt. auxiliary agent and suitable amount of water. The auxiliary agent comprises 6-7 pts. wt. agar, 3-4 pts. wt. ethylene glycol dimethacrylate, 1-2 pts. wt. charcoal powder, 7-9 pts. wt. borax, 5-6 pts. wt. zinc borate, 3-5 pts. wt. glycerin, 1-2 pts. wt. zinc sulfate, 2-3 pts. wt. ammonium molybdate, 10-14 pts. wt. starch, and suitable amount of water and is prepared by heating above-mentioned raw materials at normal temperature for 70-80 minutes by adding suitable amount of water and stirring the mixture uniformly to obtain product. An INDEPENDENT CLAIM is included for methods of preparing the resin-coated controlled-release fertilizer, which involves (a) drying and crushing dried sugarcane bagasse, peanut shell, shell powder, biogas residue, rapeseed cake, and vegetable residue to obtain 180 mesh size powder, adding microbial inoculum diluted with 10 times water to the resulting powder, adjusting water content of the resulting mixture to 30-35%, and fermenting the mixture at 42-45 degrees C for 16-20 days, where the fermentation mixture is turned once every 2 days, (b) dissolving remaining raw materials except auxiliary agent and medical stone by adding 5-6 times water, and stirring the resulting mixture uniformly for 10-15 minutes, (c) crushing medical stone to obtain 60 mesh size powder, and mixing resulting powder with product obtained in the step (b) and stirring the mixture uniformly for 40-50 minutes, and (d) mixing the resulting product obtained in the step (a) and (c) with auxiliary agent and stirring the mixture for 30-40 minutes to obtain product.