NOVELTY - Bioorganic polymer coated fertilizer comprises dried cow dung, potassium sulfate, diammonium hydrogen phosphate, urea, brown humic acid, cactus, seaweed, kelp stem, black humic acid, corn flour, chicken manure, bone meal, peanut shell, saw dust, rape straw, effective microorganism (EM) microbial agent, modified bamboo fiber, polyvinyl alcohol, diatomite, nano carbon, zinc sulfate, glycidyl methacrylatehydroxypropyl acrylate, dibutyltin maleate, potassium persulfate, octaphenyl polyoxyethylene and suitable amount of water.    USE - As zinc-rich bioorganic polymer coated fertilizer for strawberry (claimed).    ADVANTAGE - The fertilizer improves quality of strawberry.    DETAILED DESCRIPTION - Bioorganic polymer coated fertilizer comprises 37-43 pts. wt. dried cow dung, 14-21 pts. wt. potassium sulfate, 21-26 pts. wt. diammonium hydrogen phosphate, 18-25 pts. wt. urea, 3-4 pts. wt. brown humic acid, 32-35 pts. wt. cactus, 20-25 pts. wt. seaweed, 33-38 pts. wt. kelp stem, 2-3 pts. wt. black humic acid, 11-16 pts. wt. corn flour, 32-37 pts. wt. chicken manure, 23-28 pts. wt. bone meal, 21-25 pts. wt. peanut shell, 23-26 pts. wt. saw dust, 32-37 pts. wt. rape straw, 7-9 pts. wt. effective microorganism (EM) microbial agent, 11-14 pts. wt. modified bamboo fiber, 3-5 pts. wt. polyvinyl alcohol, 3-5 pts. wt. diatomite, 2-4 pts. wt. nano carbon, 3-4 pts. wt. zinc sulfate, 3-4 pts. wt. glycidyl methacrylate, 1-2 pts. wt. hydroxypropyl acrylate, 0.1-0.2 pt. wt. dibutyltin maleate, 0.2-0.3 pt. wt. potassium persulfate, 0.1-0.4 pt. wt. octaphenyl polyoxyethylene and suitable amount of water. The modified bamboo fiber comprises 2-4 pts. wt. nano calcium carbonate, 3-5 pts. wt. nano iron ore tailings, 6-8 pts. wt. nano attapulgite, 73-80 pts. wt. bamboo fiber, 18-23 pts. wt. acrylic acid, 0.2-0.4 pt. wt. ammonium persulfate, 0.02-0.03 pts. wt. N,N-methylene-bis-acrylamide, 12-14 pts. wt. tung oil, and suitable amount of water. The modified bamboo fiber is prepared by adding calcium carbonate, nano iron ore tailings, nano attapulgite and bamboo fiber to a reaction vessel, adding suitable amount of water to the vessel, stirring the mixture to obtain a paste, adding ammonium persulfate, N,N-methylene-bis-acrylamide to the paste, heating the mixture in a water bath at 70 degrees C for 3-4 hours, drying obtained product, adding tung oil to dried product, stirring the mixture, and grinding the stirred mixture to a fine powder. An INDEPENDENT CLAIM is included for method for preparing the fertilizer which involves (a) mixing dried cow dung, cactus, seaweed, kelp stem, corn flour, chicken manure, bone meal, peanut shell, saw dust, rape straw, EM and microbial agent until moisture content reaches 43-46%, performing aerobic fermentation of mixture for 15-20 days, turning the mixture once in every 14-20 hours, and granulating the mixture using a granulator to obtain granules, (b) dissolving octaphenyl polyoxyethylene, methacrylatehydroxypropyl acrylate, dibutyltin maleate, and potassium persulfate using water, adding diatomite to dissolved mixture, stirring the mixture at 1000-1200 rotations per minute (rpm) to obtain suspension, adding zinc sulfate, nanocarbon, polyvinyl alcohol and modified bamboo fiber, grinding the mixture uniformly, and dispersing the ground mixture to obtain viscous coating layer, and (c) mixing the products obtained in steps (a), and (b), adding the remaining materials to the mixture, heating the mixture at 70 degrees C, cooling the heated mixture, and granulating the mixture.