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 10 to about 25% by weight dicyandiamide (DCD);
b. from about 10 to about 25% by weight N—(N-butyl) Thiophosphoric Triamide (NBPT); and
c. from about 1 to about 20% by weight styrene-maleic anhydride copolymer.
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 DCD is present in an amount from about 15 to about 20% by weight.
5. The composition of claim 1 , wherein the NBPT is present in an amount from about 15 to about 20% by weight.
6. The composition of claim 1 comprising:
a. about 17% by weight dicyandiamide (DCD);
b. about 17% by weight N—(N-butyl) Thiophosphoric Triamide (NBPT);
c. from about 1 to about 20% by weight styrene-maleic anhydride copolymer;
d. from about 1 to about 65% by weight dimethyl sulfoxide (DMSO); and
e. from about 1 to about 65% by weight monoethanolamine (MEA).
7. 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 dicyandiamide (DCD); from about 10 to about 25% by weight N—(N-butyl) Thiophosphoric Triamide (NBPT); from about 1 to about 20% by weight styrene-maleic anhydride copolymer; from about 1 to about 65% by weight dimethyl sulfoxide (DMSO); and from about 1 to about 65% by weight monoethanolamine (MEA) to a fertilizer.
8. The method of claim 7 , wherein the DCD is present in an amount from about 15 to about 20% by weight.
9. The method of claim 7 , wherein the NBPT is present in an amount from about 15 to about 20% by weight.
10. The method of claim 7 , wherein the fertilizer is a liquid fertilizer.
11. The method of claim 7 , wherein the fertilizer is a nitrogen fertilizer.
12. The method of claim 11 , wherein the nitrogen fertilizer is a urea fertilizer.
13. The method of claim 7 , wherein the fertilizer is anhydrous ammonia.
14. The method of claim 7 , wherein the composition is added to the fertilizer before use.
15. The method of claim 14 , wherein the fertilizer is a urea ammonium nitrate fertilizer.