FIELD: agriculture.
SUBSTANCE: invention is related in particular to fertilizers based on urea-ammonium sulphate. Homogeneous particulate fertilizer composition based on urea-ammonium sulphate (UAS) contains urea-ammonium sulphate, a urease inhibitor of the phosphoric acid triamide type and magnesium sulphate, the content of ammonium sulphate in the urea-ammonium sulphate fertilizer composition is from 5 to 30% by weight, the content of magnesium sulphate is from 0.02 to 1% by weight and the content of the urease inhibitor is from 0.0001 to 1% by weight. The fertilizer composition additionally contains an alkaline or alkaline forming compound selected from the group consisting of calcium oxide, zinc oxide, magnesium oxide, calcium carbonate and mixtures thereof, and optionally one or more anti-caking and/or water-repellent and/or anti-dust compounds.
EFFECT: proposed fertilizer composition based on urea-ammonium sulphate has improved properties to reduce ammonia losses due to urease activity in the soil.
25 cl, 1 tbl, 5 dwg, 4 ex
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