NOVELTY - Slow-release fertilizer is prepared using pomegranate peel powder, pig manure, egg shell powder, gypsum, zinc sulfate, borax, sulfur, ammonium phosphate, potassium chloride, urea, ammonium nitrate, metalloenzymes, activated sludge, attapulgite, polyvinyl alcohol, effective microorganism (EM) agent, soil conditioner, and water.    USE - As slow-release fertilizer for strawberry (claimed).    ADVANTAGE - The slow-release fertilizer has excellent long-lasting effects.    DETAILED DESCRIPTION - Slow-release fertilizer is prepared using 14-18 pts. wt. pomegranate peel powder, 32-35 pts. wt. pig manure, 15-18 pts. wt. egg shell powder, 20-27 pts. wt. gypsum, 1-2 pts. wt. zinc sulfate, 2-3 pts. wt. borax, 5-7 pts. wt. sulfur, 13-18 pts. wt. ammonium phosphate, 16-21 pts. wt. potassium chloride, 23-27 pts. wt. urea, 17-23 pts. wt. ammonium nitrate, 0.2-0.6 pt. wt. metalloenzymes, 48-55 pts. wt. activated sludge, 7-9 pts. wt. attapulgite, 8-15 pts. wt. polyvinyl alcohol, 5-7 pts. wt. effective microorganism (EM) agent, 8-13 pts. wt. soil conditioner, and suitable amount of water. The soil conditioner comprises 0.4-1 pt. wt. manganese sulfate, 0.3-1 pt. wt. nanocarbon, 1-2 pts. wt. ammonium formate, 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 conditioner is prepared by (a) heating ammonium formate, selenium-enriched yeast, calcium citrate, zinc gluconate, magnesium sulfate and tetraethyl orthosilicate at 40-50 degrees C, (b) granulating the heated raw materials by adding remaining raw materials, (c) dissolving the obtained granules in 10 times ethanol, (d) spraying castor oil on the dissolved mixture, and (e) drying the resulting mixture at room temperature to obtain product. An INDEPENDENT CLAIM is included for method of preparing the slow-release fertilizer, which involves (a) mixing pomegranate peel powder, pig manure, egg shell powder, urea, borax, sulfur, attapulgite and EM agent to have moisture content of 41-45%, fermenting the resulting mixture at 22-27 degrees C for 3-4 days, where the fermentation mixture is turned once, and crushing the fermentation product to obtain 200-400 mesh size powder, (b) adding phosphogypsum, zinc sulfate, potassium chloride, monoammonium phosphate, ammonium nitrate and metalloenzymes to the resulting powder and granulating the obtained mixture, (c) dissolving the obtained granules in 6% polyvinyl alcohol solution, (d) spray-drying the dissolved mixture, and (e) coating the resulting dried mixture with soil conditioner to obtain product.