The invention discloses multifunctional biological organic composite coated
fertilizer. The multifunctional biological organic composite coated
fertilizer is prepared from 65-69 parts by weight of
rye bran, 56-59 parts by weight of rice saccharified
slag, 35-40 parts by weight of mix-fired
soya bean powder, 15-19 parts by weight of
potassium chloride, 29-33 parts by weight of
urea, 3-5 parts by weight of
alum, 1-2 parts by weight of
citric acid, 2-4 parts by weight of aluminum
sulfate, 8-10 parts by weight of bamboo carbon
powder, 2-3 parts by weight of
starch ether, 2-4 parts by weight of fructus quisqualis
powder, 22-25 parts by weight of
diammonium phosphate, 5-7 parts by weight of an EM microbial inoculum, 3-4 parts by weight of neem
bark powder, 7-9 parts by weight of a
soil conditioner and a proper amount of water. The multifunctional biological organic composite coated
fertilizer has a reasonable formula. Through use of the
soil conditioner, effects of improving fertilizer effects and promoting
nutrient absorption of plants are obtained. Through use of raw materials such as fructus quisqualis powder and neem
bark powder, effects of expelling insects, killing insects, preventing insects, reducing or avoiding
pesticide use and protecting the environment are obtained. Through use of the
urea coating, the multifunctional biological organic composite coated fertilizer has slow release effects, prolongs fertilizer action time and realizes yield increasing.