NOVELTY - Organic-inorganic compound biological medicine fertilizer contains 50-60 pts. wt. sweet potato vines, 10-20 pts. wt. deciduous leaves, 10-12 pts. wt. bone meal, 10-12 pts. wt. monoammonium phosphate, 18-20 pts. wt. concentrated superphosphate, 10-12 pts. wt. ammonium bicarbonate, 8-10 pts. wt. potassium sulfate, 10-16 pts. wt. silkworm faeces, 8-10 pts. wt. sepiolite, 2-3 pts. wt. Cnidium fruit, 1.5-2 pts. wt. magnesium sulfate, 3-5 pts. wt. potassium chloride, 0.2-0.3 pts. wt. ferrous sulfate and 1-2 pts. wt. effective microorganisms strain.    USE - The organic-inorganic compound biological medicine fertilizer is useful for sweet potatoes (claimed).    ADVANTAGE - The fertilizer reduces the environmental pollution, exhibits increased bactericidal effect, effective slow release, improved fertilizer utilization ratio, reduced fertilization frequency, reduced fertilizer cost, improved economic benefit, and improves quality and yield of the sweet potatoes.    DETAILED DESCRIPTION - Organic-inorganic compound biological medicine fertilizer for sweet potatoes, comprises 50-60 pts. wt. sweet potato vines, 10-20 pts. wt. deciduous leaves, 10-12 pts. wt. bone meal, 15-17 pts. wt. poultry droppings, 18-22 pts. wt. sodium humate, 14-16 pts. wt. chicken feathers, 10-12 pts. wt. monoammonium phosphate, 18-20 pts. wt. concentrated superphosphate, 10-12 pts. wt. ammonium bicarbonate, 8-10 pts. wt. potassium sulfate, 10-16 pts. wt. silkworm faeces, 8-10 pts. wt. sepiolite, 2-3 pts. wt. Cnidium fruit, 2-3 pts. wt. Aloe, 3-4 pts. wt. buckeye, 2-3 pts. wt. Pharbitis seed, 4-6 pts. wt. Cinnamomum burmannii, 0.02-0.04 pts. wt. sodium molybdate, 1.5-2 pts. wt. magnesium sulfate, 3-5 pts. wt. potassium chloride, 0.2-0.3 pts. wt. ferrous sulfate and 1-2 pts. wt. effective microorganisms strain. An INDEPENDENT CLAIM is included for method for preparing the fertilizer, which involves extracting Cnidium fruit, Aloe, chestnut, Pharbitis seed, and rhizoma cyperi, concentrating to obtain the Chinese medicinal herbal concentrated solution, crushing sweet potato, bone meal, poultry manure, and humic acid sodium, fully mixing, fermenting for 8-10 days, adding chicken feather with sulfuric acid, generating amino acid, then adding lime to neutralize, then adding carboxymethyl cellulose, sodium silicate, magnesium sulfate, potassium chloride, and ferrous sulfate, calcium superphosphate, calcium nitrate, and potassium sulfate, mixing, obtaining biological medical fertilizer granule, immersing sepiolite, crushing into powder, stirring, then adding sodium lauryl sulfate with of sepiolite, acetic acid, wintergreen, and aluminum hydroxide, stirring and drying to obtain dispersion liquid.