FIELD: agriculture.
SUBSTANCE: invention relates to agriculture, in particular, to fertilizer production technology, and can be used for production of effective organo-mineral fertilizers from pig complex wastes. Method of producing organo-mineral fertilizer consists in treatment of liquid wastes during 3–5 minutes with calcium-containing reagent in dose 1.6–2.6 g/dm3. Then, during 2–3 minutes, the ammophos suspension is added in dose of 1.5–2.0 g/dm3, or the nitrophoska suspension is added in dose of 2.0–2.5 g/dm3, or 10 % oxalic acid solution in dose of 2.0–3.0 g/dm3. Further, quartz-glauconitic sand is added in amount of 10–15 % of the total volume of the mixture.
EFFECT: technical result is faster process of producing fertilizer with high concentration of biogenic components.
1 cl, 3 ex
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