NOVELTY - Controlled release polyurethane/diatomite fertilizer comprises diatomite, ammonium bicarbonate, ammonium phosphate, carbamide, potassium dihydrogen phosphate, magnesium sulfate, clover, wheat bran, livestock and poultry manure, sodium caseinate, fresh ginger, corn straw, sodium acetate, chicken intestine powder, vine root, fragrance powder, aqueous polyurethane, sodium dodecyl sulfate, polyethylene glycol, stone powder, poly silicate iron, and auxiliary agent.    USE - Controlled release polyurethane/diatomite fertilizer.    ADVANTAGE - The controlled release polyurethane/diatomite fertilizer is environmentally friendly, and provides durability and high content of nutrients to soil thus increasing the yield and quality of crop.    DETAILED DESCRIPTION - Controlled release polyurethane/diatomite fertilizer comprises 1250-2000 pts. wt. diatomite, 10-15 pts. wt. ammonium bicarbonate, 18-22 pts. wt. ammonium phosphate, 6-8 pts. wt. carbamide, 18-20 pts. wt. potassium dihydrogen phosphate, 22-25 pts. wt. magnesium sulfate, 10-12 pts. wt. clover, 8-10 pts. wt. wheat bran, 10-12 pts. wt. livestock and poultry manure, 15-18 pts. wt. sodium caseinate, 4-5 pts. wt. fresh ginger, 2-4 pts. wt. corn cob, 6-8 pts. wt. sodium acetate, 4-6 pts. wt. chicken intestine powder, 3-5 pts. wt. vine root, 1-3 pts. wt. fragrance powder, 6-9 pts. wt. aqueous polyurethane, 10-12 pts. wt. sodium dodecyl sulfate, 1-2 pts. wt. polyethylene glycol, 1-3 pts. wt. stone powder, 6-8 pts wt. poly silicate iron, and 4-5 pts. wt. auxiliary agent. The auxiliary agent comprises 14-15 pts. wt. vermiculite powder, 2-3 pts. wt. borax, 2-3 pts. wt. calcium amino acid chelate, 1-2 pts. wt. manganese citrate, 1-2 pts. wt. zinc citrate, 4-6 pts. wt. methyl methacrylate, 2-3 pts. wt. Bacillus subtilispowder, 2-3 pts. wt. organic titanium chelates, 0.1-0.15 pts. wt. ammonium persulfate, and 1-2 pts. wt. water. The auxiliary agent is prepared by adding vermiculite powder and borax to the water, uniformly stirring, then adding organic titanium chelates, zinc citrate and methyl methacrylate, heating at 70-80 degrees C, reacting for 30-45 minutes, cooling to 20-35 degrees C, adding the remaining components, stirring the reaction for 20-30 minutes, cooling, and drying. An INDEPENDENT CLAIM is included for preparing controlled release polyurethane/diatomite fertilizer comprising (A) mixing clover, wheat bran, ginger, corn straw, crushing, adding water, and carrying out anaerobic fermentation at low temperature for 4-5 days, (B) mixing equal amount of water and diatomite, grinding for 20-30 minutes and preparing diatomite solution, then stirring with poly silicate iron for 15 minutes, adding ammonium phosphate and manganese sulfate, uniformly stirring the mixture material, and drying to obtain diatomite coating material, (C)mixing sodium caseinate, polyethylene glycol, sodium dodecyl sulfate in deionized water, stirring and dissolving the material, then adding aqueous polyurethane, vine root and fragrance powder, continuously stirring for 20-30 minutes to obtain slow release coating agent, and (D) uniformly mixing the remaining material and step (A) and (B) products, granulating, spraying on surface of slow release coating agent, hot air drying at room temperature, and cooling.