FIELD: agriculture.
SUBSTANCE: composition contains from 35 wt % to 41 wt % of phosphoric acid, from 59 wt % to 65 wt % of monopotassium phosphate and from 0.1 to 0.6 wt % of water. The method includes mixing of phosphoric acid, monopotassium phosphate and water, heating up to 65-90°C, evaporation of the produced solution in vacuum at the temperature of 10-120°C to produce a solid uniform material, cooling of material. Fertiliser solutions remain transparent even with content of calcium nitrate or magnesium nitrate, or potassium phosphate with salts of such metals as Zn, Fe, Cu, Mn, Mo, etc., and may be stored without loss of the specified properties.
EFFECT: invention makes it possible to produce a fertiliser composition, which gives solutions, which do not have turbidity and deposition of solid substances.
18 cl, 1 tbl, 3 ex
