Liquid dicyandiamide and/or alkyl thiophosphoric triamide compositions and their use in agricultural applications
AssigneeRhodia Operations
InventorsMarivi ORTIZ-SUAREZ, Thomas RUCH, Krish SHANMUGA
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Abstract
An inhibitor composition contains dicyandiamide as a nitrification inhibitor, alkyl thiophosphoric triamide as a urease inhibitor, or a combination thereof, dissolved in a liquid medium comprising an organic solvent selected from, among others, one or more polar aprotic solvents, amine solvents, heterocyclic alcohol solvents, and mixtures thereof, is useful in making fertilizer compositions and in a method of fertilizing target plants.
Claims17
A composition for use in agricultural applications comprising at least one of a dicyandiamide or an alkyl thiophosphoric triamide, dissolved in a liquid medium comprising an organic solvent comprising a polar aprotic solvent, an amine solvent, a heterocyclic alcohol solvent or a mixture thereof.
A method of making a solid or concentrated liquid fertilizer composition comprising treating one or more nitrogenous fertilizer compounds with an inhibitor composition that comprises at least one of a dicyandiamide or an alkyl thiophosphoric triamide, the inhibitor composition dissolved in a liquid medium comprising an organic solvent selected from polar aprotic solvents, amine solvents, heterocyclic alcohol solvents, and mixtures thereof.
A concentrated liquid fertilizer composition comprising, based on 100 parts by weight of the composition:
- (a) up to about 99 parts by weight of one or more nitrogenous fertilizer compounds,
- (b) at least one of a dicyandiamide or an alkyl thiophosphoric triamide,
- (c) an organic solvent selected from polar aprotic solvents, amine solvents, heterocyclic alcohol solvents, and mixtures thereof, and
- (d) water.
A solid fertilizer composition comprising:
- (a) solid particles of one or more nitrogenous fertilizer compounds, and
- (b) an inhibitor composition comprising at least one of a dicyandiamide or an alkyl thiophosphoric triamide supported on at least a portion of the solid particles.
A method of making an aqueous end use fertilizer composition comprising incorporating:
- (a) one or more nitrogenous fertilizer compounds, and
- (b) an inhibitor composition that comprises at least one of a dicyandiamide or an alkyl thiophosphoric triamide, the inhibitor composition dissolved in a liquid medium comprising an organic solvent selected from polar aprotic solvents, amine solvents, heterocyclic alcohol solvents, and mixtures thereof,
- in an aqueous medium.
An aqueous end use fertilizer composition comprising, based on 100 parts by weight of the composition:
- (a) up to about 99 parts by weight of one or more nitrogenous fertilizer compounds,
- (b) at least one of a dicyandiamide or an alkyl thiophosphoric triamide,
- (c) an organic solvent selected from polar aprotic solvents, amine solvents, heterocyclic alcohol solvents, and mixtures thereof, and
- (d) water.
A method for fertilizing target plants, comprising applying an aqueous end use fertilizer composition that comprises:
- (a) one or more nitrogenous fertilizer compounds
- (b) at least one of a dicyandiamide or an alkyl thiophosphoric triamide,
- (c) an organic solvent selected from dimethyl sulfoxide, dimethyl formamide, the dimethyl ester of succinic acid, dimethyl ester of ethyl succinic acid, the dimethyl ester of glutaric acid, the dimethyl ester of methyl glutaric acid, and the dimethyl ester of adipic acid, diethylene triamine, or monoethanolamine, methyl-5-(dimethylamino)-2-methyl-oxopentanoate, dimethylaminoethanol, triethanol amine, a heterocyclic alcohol according to structure (III):
- and mixtures thereof, and
- (d) water,
- to the target plants or to an environment for the target plants.
Dependencies are inferred from the claim text.