NOVELTY - Fertilizer composition comprises 100-120 pts. wt. plant straw, 40-45 pts. wt. edible mushroom residue, 60-65 pts. wt. vegetable cake, 30-34 pts. wt. rice hull, 30-34 pts. wt. urea, 40-45 pts. wt. diammonium phosphate, 20-23 pts. wt. potassium sulfate, 2-3 pts. wt. zinc sulfate, 2-3 pts. wt. magnesium carbonate, 3-4 pts. wt. effective microorganism, 4-6 pts. wt. coating agent and balanced amount of water. Coating agent comprises 2-3 pts. wt. dimethylaminoethyl acrylate, 1-2 pts. wt. dimethylaminoethyl methacrylate, 1-2 pts. wt. magnesium sulfate and 2-3 pts. wt. 2-ethylhexyl phosphate.    USE - Fertilizer composition.    ADVANTAGE - The fertilizer composition increases soil fertility, crop resistance and fertilizer utilization rate, and ensures sustainable development of agriculture and low production cost.    DETAILED DESCRIPTION - Fertilizer composition comprises 100-120 pts. wt. plant straw, 40-45 pts. wt. edible mushroom residue, 60-65 pts. wt. vegetable cake, 30-34 pts. wt. rice hull, 30-34 pts. wt. urea, 40-45 pts. wt. diammonium phosphate, 20-23 pts. wt. potassium sulfate, 2-3 pts. wt. zinc sulfate, 2-3 pts. wt. magnesium carbonate, 3-4 pts. wt. effective microorganism inoculum, 4-6 pts. wt. coating agent and balanced amount of water. Coating agent comprises 2-3 pts. wt. dimethylaminoethyl acrylate, 1-2 pts. wt. dimethylaminoethyl methacrylate, 1-2 pts. wt. magnesium sulfate, 2-3 pts. wt. 2-ethylhexyl phosphate, 1-2 pts. wt. triallyl cyanurate as cross-linking agent, 0.1-0.2 pts. wt. nano-carbon and 2-3 pts. wt. stone powder, and is prepared by mixing, grinding and dispersing raw materials. An INDEPENDENT CLAIM is included for a method for preparing fertilizer composition, which involves:    (A) drying and crushing plant straw to obtain slurry;    (B) mixing plant straw slurry, mushroom residue, vegetable cake and rice husk to obtain organic material;    (C) heating mixture of urea, diammonium phosphate and potassium sulfate to obtain liquid fertilizer;    (D) adding zinc sulfate, magnesium carbonate, effective microorganism inoculum and other remaining component with liquid fertilizer and water to obtain mixed liquid;    (E) mixing organic material, liquid fertilizer and mixed liquid to obtain mixture;    (F) fermenting mixture for 15-20 days; and    (G) drying fermented material to obtain granule as product.