COMPOSITIONS WITH IMPROVED UREASE INHIBITING ACTION AND UREA-CONTAINING FERTILISERS CONTAINING SAID COMPOSITIONS Russian patent published in 2011 - IPC C05G3/08 C05C9/00 C07F9/22 

FIELD: chemistry.

SUBSTANCE: invention relates to compositions with improved urease inhibiting action, which contain at least two different triamides of (thio)phosphoric acid, as well as urea-containing fertilisers which contain said compositions. The invention also relates to a method of producing said compositions and use of said compositions when using urea-containing fertilisers in agriculture or horticulture. The composition contains triamide of (thio)phosphoric acid with structures according to the following formula (I), R1R2N-P(X)(NH2)2 (I), in which X denotes oxygen or sulphur, R1 denotes an alkyl group having 1-10 carbon atoms, cycloalkyl having 3-10 carbon atoms, aryl having 6-10 carbon atoms or dialkyl aminocarbonyl and R2 denotes hydrogen, or R1 and R2 together the nitrogen atom with which they are bonded form a 5- or 6-member saturated or unsaturated heterocyclic residue which, if necessary, can contain an additional 1 or 2 other heteroatoms selected from a group comprising nitrogen, oxygen and sulphur.

EFFECT: invention improves utilisation of nitrogen and reduces the required amount of urease inhibitors.

10 cl, 12 tbl