NOVELTY - Controlled release fertilizer comprises 30-35 pts. wt. corn core, 25-27 pts. wt. corn leaf, 25-35 pts. wt. dry leaf, 40-45 pts. wt. pig feces, 18-20 pts. wt. diatomite, 16-18 pts. wt. shell powder, 28-34 pts. wt. rapeseed pole, 2-3 pts. wt. biological microbial inoculum, 10 pts. wt. maifanite, 2-3 pts. wt. sodium selenite, 6-8 pts. wt. potassium borate, 10 pts. wt. calcium-magnesium phosphate, 6-8 pts. wt. ammonium chloride, 10-12 pts. wt. potassium sulfate, 8-12 pts. wt. alkyd resin, 3-4 pts. wt. ethyl alcohol and 2-4 pts. wt. dodecylbenzenesulfonic acid sodium salt.    USE - Controlled release fertilizer used for growing soybean.    ADVANTAGE - The controlled release fertilizer reduces manpower, and ensures water regulation of soybean.    DETAILED DESCRIPTION - Controlled release fertilizer comprises 30-35 pts. wt. corn core, 25-27 pts. wt. corn leaf, 25-35 pts. wt. dry leaf, 40-45 pts. wt. pig feces, 18-20 pts. wt. diatomite, 16-18 pts. wt. shell powder, 28-34 pts. wt. rapeseed pole, 2-3 pts. wt. biological microbial inoculum, 10 pts. wt. maifanite, 2-3 pts. wt. sodium selenite, 6-8 pts. wt. potassium borate, 10 pts. wt. calcium-magnesium phosphate, 6-8 pts. wt. ammonium chloride, 10-12 pts. wt. potassium sulfate, 8-12 pts. wt. alkyd resin, 3-4 pts. wt. ethyl alcohol, 2-4 pts. wt. dodecylbenzenesulfonic acid sodium salt, 4 pts. wt. crosslinking agent and balanced amount of water. Crosslinking agent comprises 2-3 pts. wt. butyl acrylate, 3-5 pts. wt. tributyl citrate, 2-3 pts. wt. colophony powder, 5-7 pts. wt. wood powder, 5-7 pts. wt. green cucumber, 2 pts. wt. N,N'-methylenebisacrylamide, 4-5 pts. wt. ethyl alcohol, 2 pts. wt. shellac powder balanced amount of water. Crosslinking agent is prepared by adding ethyl alcohol in water in ratio of 1:3 to dilute ethyl alcohol, and then colophony powder, butyl acrylate, N,N'-methylenebisacrylamide and tributyl citrate are added to obtain a mixture. The mixture is dissolved by heating at 70-90 degrees C for 20-30 minutes and then remaining components are mixed. An INDEPENDENT CLAIM is included for a method for preparing controlled release fertilizer in form of granules, which involves:    (A) drying corn core, corn leaf, dry leaf, pig manure, diatomite and rapeseed and and performing ultra-micro crushing through 140 meshes to obtain powder;    (B) fermenting the powder by using biological microbial inoculum and water (10 times dilution) at 36-40 degrees C for 18-22 days to obtain a product;    (C) adding remaining components with the product at 30-40 degrees C, stirring and then cooling; and    (D) solidifying cooled product, and then crushing it through 20 meshes to obtain granules.