Urease inhibited urea based fertilizer compositions containing N-aryl-N-aliphatic phosphorotriamide compounds
AssigneeAllied Corporation
InventorsMichael D. Swerdloff, Michael Van Der Puy, Jaroslav F. Kolc, Milorad M. Rogic, Larry L. Hendrickson
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Abstract
The invention relates to novel urease inhibited fertilizer compositions containing urea and a urease inhibiting amount of phosphorotriamidate compounds, and methods and composition for inhibiting the activity of urease through use of such compounds.
Claims39
A urease inhibiting composition comprising an acceptable carrier and a urease inhibiting effective amount of one or more phosphorotriamide compounds of the formula:
- ##STR11## wherein:
- X is oxygen or sulfur;
- R.sub.1 is alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl or aralkyl;
- R.sub.2 is heterocycle, aryl, or aryl substituted with one or more substituents selected from the group consisting of trihalomethyl, alkyl, halo, phenoxy, phenyl, nitro, cyano, amino, alkylamino, dialkylamino, alkoxy, amido, mercapto, alkylmercapto, arylmercapto, alkylcarbonyl, arylcarbonyl, quaternary ammonium radicals, carboxy, alkylcarboxy, carbonamide, isocyano, isocyanato, (NH.sub.2).sub.2 P(O)O--, and (NH.sub.2).sub.2 P(O)NH--, H.sub.2 NSO.sub.2 --;
- and
- R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are individually hydrogen or alkyl having from 1 to 4 carbon atoms.
A method of inhibiting the urease catalyzed hydrolysis of urea at a situs which comprises applying to said situs a urease inhibiting effective amount of one or more phosphorotriamide compounds of the formula:
- ##STR12## wherein:
- R.sub.1 is alkyl, alkenyl, cycloalkyl, cycloalkenyl or aralkyl;
- R.sub.2 is heterocycle, aryl or aryl substituted with one or more substituents selected from the group consisting of trihalomethyl, alkyl, halo, phenoxy, phenyl, nitro, cyano, amino, alkylamino, dialkylamino, alkoxy, amido, mercapto, alkylmercapto, arylmercapto, alkylcarbonyl, arylcarbonyl, quaternary amonium radicals, carboxy, alkylcarboxy, carbonamide, isocyano, isocyanato, (NH.sub.2).sub.2 P(O)O--, (NH.sub.2).sub.2 P(O)NH-- and H.sub.2 NSO.sub.2 --;
- and
- R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are individually hydrogen or alkyl having from 1 to 4 carbon atoms.
An improved fertilizer composition which comprises urea and/or one or more urea precursor compounds capable of forming urea in situ when subjected to the use condition of the composition and a urease inhibiting effective amount of one or more phosphorotriamide compounds of the formula:
- ##STR13## wherein:
- X is oxygen or sulfur;
- R.sub.1 is alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, or aralkyl;
- R.sub.2 is heterocycle, aryl, or aryl substituted with one or more substituents selected from the group consisting of trihalomethyl, alkyl, halo, amido, phenoxy, phenyl, nitro, cyano, amino, alkylamino, dialkylamino, alkoxy, alkylcarboxy, mercapto, isocyano, alkylmercapto, arylmercapto, alkylcarbonyl, isocyanato, arylcarbonyl, quaternary ammonium radicals, carboxy, carbonamide, (NH.sub.2).sub.2 P(O)O--, (NH.sub.2).sub.2 P(O)NH-- or H.sub.2 NSO.sub.2 --;
- and
- R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are individually hydrogen or alkyl having from 1 to 4 carbon atoms.
Dependencies are inferred from the claim text.