NOVELTY - Multi-element biological fertilizer composition comprises wheat straw powder, bean straw powder, root stimulating agent, pig manure, potassium fulvate, urea, soybean straw powder, ammonium sulfate, calcium-magnesium phosphate fertilizer, sweet potato powder, Lotus root starch, zinc sulfate, ferrous sulfate, borax, peanut shell powder, copper sulfate, sugarcane powder and microbial agent.    USE - As multi-element biological fertilizer composition.    ADVANTAGE - The fertilizer is nutritious, improves growth rate of plant and soil, easily absorbed by plant root, maintains rhizosphere ecological environment and pH of soil, decomposes and fixes soil nutrient, can be prepared simply, and is cost-effective.    DETAILED DESCRIPTION - Multi-element biological fertilizer composition comprises 90-100 pts. wt. wheat straw powder, 40-50 pts. wt. bean straw powder, 8-10 pts. wt. root stimulating agent, 30-50 pts. wt. pig manure, 10-20 pts. wt. potassium fulvate, 5-10 pts. wt. urea, 70-80 pts. wt. soybean straw powder, 1-3 pts. wt. ammonium sulfate, 25-40 pts. wt. calcium-magnesium phosphate fertilizer, 10-20 pts. wt. sweet potato powder, 5-8 pts. wt. Lotus root starch, 4-8 pts. wt. zinc sulfate, 2-5 pts. wt. ferrous sulfate, 1-3 pts. wt. borax, 20-30 pts. wt. peanut shell powder, 2-4 pts. wt. copper sulfate, 1-3 pts. wt. sugarcane powder and 7-10 pts. wt. microbial agent. An INDEPENDENT CLAIM is included for method for preparing the fertilizer, which involves (a) mixing the bean straw powder, root stimulating agent, potassium fulvate, urea, soybean straw powder, ammonium sulfate, calcium-magnesium phosphate fertilizer, sweet potato powder, Lotus root starch, zinc sulfate, ferrous sulfate, borax, peanut shell powder, copper sulfate and sugarcane powder using mixer, and stirring the mixture at 65-75 revolutions per minute (rpm), (b) sieving the mixture using 60-meshes sieve, adding the mixture in fermentation tank, then adding microbial agent to the tank, then adding water to the tank, performing fermentation of the mixture at 25-35 degrees C for 5 days, and filtering the fermented product, (c) mixing the residue obtained in the step (b) with wheat straw powder and pig manure to obtain mixed material, naturally drying the mixed material, sealing and storing the mixed material, sterilizing the mixed material at 120-140 degrees C for 2 hours, and drying the sterilized mixed material at 120-140 degrees C for 10-15 minutes using dryer, and (d) and granulating the product obtained in the step (c) using granulator.