Compositions and their use in agricultural applications
Compositions include dicyandiamide (DCD), N-(N-butyl) Thiophosphoric Triamide (NBPT), and styrene-maleic anhydride copolymer in a solution. Agricultural fertilizer compositions contain the DCD, NBPT and styrene-maleic anhydride copolymer composition in combination with a fertilizer.
1. A composition for use in agricultural applications comprising:
a. from about 1 to about 20% by weight styrene-maleic anhydride copolymer; and
b. from about 10 to about 25% by weight N-(N-butyl) Thiophosphoric Triamide (NBPT).
2. The composition of claim 1 , further comprising from about 1 to about 65% by weight dimethyl sulfoxide (DMSO).
3. The composition of claim 1 further comprising from about 1 to about 65% by weight monoethanolamine (MEA).
4. The composition of claim 1 , wherein the NBPT is present in an amount from about 15 to about 20% by weight.
5. A method for reducing the loss of nitrogen by run off and denitrification comprising adding an effective amount of a composition including from about 10 to about 25% by weight N-(N-butyl) Thiophosphoric Triamide (NBPT); and from about 1 to about 20% by weight styrene-maleic anhydride copolymer to a fertilizer.
6. The method of claim 5 , wherein the NBPT is present in an amount from about 15 to about 20% by weight.
7. The method of claim 5 , wherein the composition is added to the fertilizer before use.
8. The method of claim 5 , wherein the fertilizer is a nitrogen fertilizer.