NOVELTY - Fertilizer comprises 12-16 pts. wt. alfalfa meal, 15-19 pts. wt. straw powder, 20-23 pts. wt. rice bran, 1-2 pts. wt. ferrous sulfate, 0.5-0.8 pt. wt. manganese sulfate, 17-26 pts. wt. potassium sulfate, 2-4 pts. wt. wood granular material, 24-28 pts. wt. diammonium phosphate, 13-16 pts. wt. wood powder, 0.4-0.6 pt. wt. zinc borate, 2-3 pts. wt. polyacrylamide, 9-12 pts. wt. chlorinated paraffin, 4-7 pts. wt. nano-modified attapulgite, 6-9 pts. wt. effective microorganism, 11-14 pts. wt. soil modifying agent, and water (remainder).    USE - As fertilizer for strawberry (claimed).    ADVANTAGE - The fertilizer is prepared by simple method, cost-effective, convenient to use, suitable for large-scale production, and environmentally-friendly.    DETAILED DESCRIPTION - Fertilizer comprises 12-16 pts. wt. alfalfa meal, 15-19 pts. wt. straw powder, 20-23 pts. wt. rice bran, 1-2 pts. wt. ferrous sulfate, 0.5-0.8 pt. wt. manganese sulfate, 17-26 pts. wt. potassium sulfate, 2-4 pts. wt. wood granular material, 24-28 pts. wt. diammonium phosphate, 13-16 pts. wt. wood powder, 0.4-0.6 pt. wt. zinc borate, 2-3 pts. wt. polyacrylamide, 9-12 pts. wt. chlorinated paraffin, 4-7 pts. wt. nano-modified attapulgite, 6-9 pts. wt. effective microorganism, 11-14 pts. wt. soil modifying agent, and remained water. The soil modifying agent comprises 0.4-1 pt. wt. manganese sulfate, 0.3-1 pt. wt. nanocarbon, 1-2 pts. wt. ammonium sulfate, 0.5-1 pt. wt. selenium enriched yeast, 1-2 pts. wt. calcium citrate, 0.3-1 pt. wt. zinc gluconate, 0.2-0.6 pt. wt. castor oil, 13-15 pts. wt. tetraethyl orthosilicate, 0.3-0.8 pt. wt. citric acid, 8-10 pts. wt. bentonite, 2-4 pts. wt. ethyl cellulose, 1-2 pts. wt. magnesium sulfate, and 0.2-0.6 pt. wt. bamboo fiber. The soil modifying agent is prepared by weighing the above-mentioned raw materials, mixing ammonium sulfate, enriched yeast, calcium citrate, zinc gluconate, magnesium sulfate, and tetraethyl orthosilicate, heating mixture at 40-50 degrees C, adding manganese sulfate, nanocarbon, citric acid, bentonite and bamboo fiber, stirring mixture, concentrating solution, granulating, drying granules, adding 10 times of ethyl cellulose to coating pan, adding castor oil, mixing uniformly, spraying mixture on granules, drying granules to remove ethanol, sieving granules and drying at room temperature. An INDEPENDENT CLAIM is included for method for preparing the fertilizer, which involves (a) mixing alfalfa meal, straw powder, rice bran, wood granular material, wood powder and effective microorganism, maintaining moisture content to 41-45%, stirring uniformly, sealing container, performing anaerobic fermentation at room temperature for 22-27 days, turning the mixture 3-4 times once every day, drying fermented mixture and sieving dried mixture using 200-400 mesh size sieve, (b) mixing ferrous sulfate, manganese sulfate, potassium sulfate, diammonium phosphate, zinc borate and polyacrylamide, crushing mixture, adding mixture obtained in the step (a), stirring uniformly, and adding mixture into granulator to obtain granules, and (c) adding granules obtained in the step (b) to drum granulator, spraying chlorinated paraffin on granules uniformly, stirring uniformly, again spraying soil modifying agent on granules, sprinkling nano-modified attapulgite evenly on coated granules and cooling granules at room temperature.