FIELD: agriculture.
SUBSTANCE: invention relates to agriculture. The method for producing a sulfur-containing fertilizer consists in mixing a 10% aqueous solution of phosphoric acid with a suspension after removing an aqueous solution of calcium polysulphide during the production thereof until a pH of 7.0 is reached and then adding a surfactant. The fertilizer contains the following components, wt. %: elemental sulfur 60-79.95, tricalcium phosphate 20.0-39.95, surfactant 0.005-0.05.
EFFECT: invention enables producing high-efficiency fertilizer and organizing waste-free green calcium polysulphide production.
5 cl, 2 dwg, 1 tbl, 1 ex
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Authors
Dates
2021-03-03—Published
2020-05-26—Filed