NOVELTY - Fertilizer contains potassium sulfate, manganese sulfate, ferrous sulfate, bentonite, pig manure, pork slaughterhouse waste, humic acid, watermelon seedling vine, grass, castor residue, monosodium glutamate residue, cypress, Bacillus megaterium, B.subtilis, Streptomyces, S.jingyangensis, Aspergillus oryzae, cellulose, soapberry peel, Ilex pubescens, Stellera chamaejasme, hop, pepper and cortex meliae.    USE - The fertilizer is useful for preventing and/or treating mosaic Polemoniaceae powdery mildew.    ADVANTAGE - The fertilizer enables to provide germination rate of Polemoniaceae seeds of 99%, planting survival rate of 98% and prevention effect of powdery mildew of 84.1%, and improve soil structure and promote soil to improve fertility as soil contains more organic substances and humic acid.    DETAILED DESCRIPTION - Fertilizer comprises raw materials comprising 8-12 pts. wt. potassium sulfate, 0.2-1.0 pts. wt. manganese sulfate, 1-3 pts. wt. ferrous sulfate, 5-10 pts. wt. bentonite, 15-20 pts. wt. pig manure, 4-6 pts. wt. pork slaughterhouse waste, 4-8 pts. wt. humic acid, 10-15 pts. wt. watermelon seedling vine, 8-12 pts. wt. grass, 5-8 pts. wt. castor residue, 8-12 pts. wt. monosodium glutamate residue, 12-18 pts. wt. cypress, 0.2-0.4 pts. wt. Bacillus megaterium, 0.3-0.5 pts. wt. B.subtilis, 0.8-1 pts. wt. Streptomyces, 0.2-0.4 pts. wt. S.jingyangensis, 0.8-1.2 pts. wt. Aspergillus oryzae, 0.6-0.8 pts. wt. cellulose, 55-60 pts. wt. soapberry peel, 5-15 pts. wt. Ilex pubescens, 1-15 pts. wt. Stellera chamaejasme, 5-10 pts. wt. hop, 25-30 pts. wt. pepper, 25-30 pts. wt. Ginkgo skin, 26-30 pts. wt. common Cnidium fruit, 17-30 pts. wt. cortex meliae, 16-25 pts. wt. Quisqualis, 1-15 pts. wt. Chinese gall and 5-10 pts. wt. radix sophorae flavescentis. An INDEPENDENT CLAIM is included for method for preparing the fertilizer, which involves (a) fermenting the above-mentioned microorganism, (b) processing crop straw other raw materials, (c) inoculating microorganism into the processed raw materials, and fermenting mixture, (d) preparing plant extract, (e) mixing potassium sulfate, manganese sulfate, ferrous sulfate and bentonite with plant extract to obtain mixed fertilizer, (f) adding fermented mixture of step (c) to the mixed fertilizer, and (g) drying mixture, crushing and packaging to obtain finished product.