NOVELTY - A biofertilizer comprises chicken manure, peat, rice bran, wheat bran, leaves, mushroom residue, feather, straw, monoammonium phosphate, urea, potassium sulfate, ammonium sulfate, ammonium hydrogen carbonate, carboxymethyl chitosan, azadirachtin, zinc sulfate, ferrous sulfate, borax, potassium fulvate and microbial leavening.    USE - Biofertilizer.    ADVANTAGE - The biofertilizer absorbs easily, increases production benefits, and has fertilizing and sterilizing functions. It is low-cost, environment-friendly and pollution-free.    DETAILED DESCRIPTION - A biofertilizer comprises 30-40 pts. wt. chicken manure, 15-20 pts. wt. peat, 12-15 pts. wt. rice bran, 10-13 pts. wt. wheat bran, 8-15 pts. wt. leaves, 20-30 pts. wt. mushroom residue, 12-15 pts. wt. feather, 10-16 pts. wt. straw, 12-17 pts. wt. monoammonium phosphate, 15-25 pts. wt. urea, 10-15 pts. wt. potassium sulfate, 12-15 pts. wt. ammonium sulfate, 11-12 pts. wt. ammonium hydrogen carbonate, 6-8 pts. wt. carboxymethyl chitosan, 4-6 pts. wt. azadirachtin, 2-4 pts. wt. zinc sulfate, 4-6 pts. wt. ferrous sulfate, 1.1-1.3 pts. wt. borax, 25-28 pts. wt. potassium fulvate and 0.5-0.8 pts. wt. microbial leavening. An INDEPENDENT CLAIM is included for preparation of biofertilizer comprising mixing chicken manure, peat, rice bran, wheat bran, leaves and mushroom residue, stirring, adding microbial leavening, mixing, adjusting water content at 55-65% and pH of 5.5-6, fermenting at 55-65 degrees C for 12 days, adding carboxymethyl chitosan, continuously fermenting for 15-20 days, controlling temperature to 60-70 degrees C to obtain fermentation liquid, hydrolyzing feather with 25-35% sulfuric acid for 8-10 hours, adding lime, carboxymethyl cellulose, zinc sulfate, ferrous sulfate and borax to obtain fertilizer solution, mixing straw, monoammonium phosphate, urea, potassium sulfate, ammonium sulfate, ammonium hydrogen carbonate and carboxymethyl chitosan, adding fermentation liquid, fertilizer solution, azadirachtin and potassium fulvate, pelletizing and spray coating.