(1) Preparation of fermented ripening powder.
Prepare the required raw materials: rice bran (rice bran, millet bran and other rice brans), oil cake (rapeseed cake, peanut cake, castor cake, etc.), soybean meal (residue after processing bean products such as tofu, no matter what kind of beans), sugars (all kinds of sugars and sugary substances), mud or black carbon powder or zeolite powder and yeast powder. According to the formula of rice bran 14,5%, oil cake 14,0%, soybean meal 13,0%, sugar 8,0%, water 50,0% and yeast powder 0,5%, first add sugar to water, stir and dissolve, then add rice bran, oil cake and soybean meal, mix them thoroughly and pile them up, ferment for 30-50 days at the temperature above 60 ℃. Then, black carbon powder or zeolite powder is mixed and diluted according to the weight ratio of 1:1, and carefully stirred.
(2) Compost production.
First, the feces were dried to 30% – 40% moisture. The feces and chopped straw and other bulks are mixed in