NOVELTY - Fertilizer comprises 100-120 pts. wt. of sheep manure, 3-4 pts. wt. of plant ash, 45-50 pts. wt. of grapevine powder, 3-4 pts. wt. of ferrous sulfate, 30-34 pts. wt. of urea, 2-3 pts. wt. of zinc chloride, 2-3 pts. wt. of magnesium sulfate, 2-3 pts. wt. of borax, 3-4 pts. wt. of sodium molybdate, 24-27 pts. wt. of dry silkworm excrement, 2-3 pts. wt. of gelatin, 2-3 pts. wt. of zinc sulfate, 30-34 pts. wt. of crop straw, 10-12 pts. wt. of tobacco scraps, 3-4 pts. wt. of effective microorganism and 4-6 pts. wt. of coating agent e.g. 20-22 pts. wt. of chlorinated paraffins.    USE - The fertilizer is useful for watermelon (claimed).    ADVANTAGE - The fertilizer: has balanced nutrition value; increase the yield and sweetness of watermelon; and does not damage the soil damage, hence ecofriendly.    DETAILED DESCRIPTION - Fertilizer comprises 100-120 pts. wt. of sheep manure, 3-4 pts. wt. of plant ash, 45-50 pts. wt. of grapevine powder, 3-4 pts. wt. of ferrous sulfate, 30-34 pts. wt. of urea, 2-3 pts. wt. of zinc chloride, 2-3 pts. wt. of magnesium sulfate, 2-3 pts. wt. of borax, 3-4 pts. wt. of sodium molybdate, 24-27 pts. wt. of dry silkworm excrement, 2-3 pts. wt. of gelatin, 2-3 pts. wt. of zinc sulfate, 30-34 pts. wt. of crop straw, 10-12 pts. wt. of tobacco scraps, 3-4 pts. wt. of effective microorganism and 4-6 pts. wt. of coating agent. The coating agent comprises 20-22 pts. wt. of chlorinated paraffins, 2-3 pts. wt. of gamma -methacryloxypropytrimethoxysilane, 0.1-0.2 pt. wt. of nanocarbon, 2-3 pts. wt. of jade powder and 2-3 pts. wt. of polyoxyethylene sorbitan monooleate, where the coating agent is prepared by mixing, grinding and uniformly dispersing the above mixture. An INDEPENDENT CLAIM is included for the preparation of fertilizer comprising: mixing sheep manure, plant ash, grapevine powder, dry silkworm excrement, crop straw and tobacco scraps, adding effective microorganism and water, uniformly stirring and fermenting the mixture for 6-8 days, where the fermenting step takes place by stirring the mixture once in 2-3 days until the mixture is completely decomposed; further adding the other raw materials of powder coating agent and uniformly mixing; and heating the obtained mixture at 80-90 degrees C, stirring and granulating.