Claims
- 1. A fertilizer composition which is an aqueous solution of a nitrogen-containing compound selected from urea, ammonium nitrate, ammonia and mixtures thereof and dicyandiamide in an amount such that the dicyandiamide nitrogen is 10% or more by weight of the total nitrogen of said solution.
- 2. A composition according to claim 1 wherein said aqueous solution has dissolved therein in addition to said nitrogen-containing compound and said dicyandiamide, a compound selected from ammonium sulfate, water-soluble phosphates and water-soluble potassium salts.
- 3. A fertilizer composition according to claim 1 wherein said nitrogen-containing compound is urea.
- 4. A fertilizer composition according to claim 1 wherein said nitrogen-containing compound is ammonium nitrate.
- 5. A method of making the fertilizer solution of claim 1 which comprises preparing an aqueous solution of said nitrogen-containing compound and thereafter dissolving crystalline dicyandiamide therein.
- 6. A fertilizer composition consisting essentially of an aqueous solution of at least one commonly used nitrogen-containing fertilizer compound selected from urea, ammonium nitrate, ammonium sulfate and ammonia, said solution having micronutrients dissolved therein and containing a stabilizing amount of dicyandiamide to maintain said micronutrients in solution.
- 7. A fertilizer composition according to claim 6 wherein said solution has a phosphorus-containing fertilizer compound dissolved therein.
- 8. A fertilizer composition according to claim 6 wherein said solution has a potassium-containing fertilizer compound dissolved therein.
- 9. A fertilizer composition according to claim 6 wherein the dicyandiamide nitrogen in said solution is at least about 10% by weight of the total nitrogen in said solution.
- 10. A fertilizer composition according to claim 6 wherein the dicyandiamide nitrogen in said solution is from about 10% to about 35% by weight of the total nitrogen in said solution.
- 11. A fertilizer composition according to claim 6 wherein said micronutrients are metal salts.
- 12. A fertilizer composition according to claim 6 wherein said micronutrients comprise from about 0.1 to about 1.5% by weight of said solution.
- 13. In an aqueous micronutrient-containing nitrogenous fertilizer solution containing at least one fertilizer compound selected from urea, ammonium nitrate, ammonium sulfate and ammonia, the improvement which comprises a stabilizing amount of dicyandiamide in said solution to prevent precipitation of said micronutrients.
- 14. A fertilizer solution according to claim 13 wherein the dicyandiamide nitrogen is at least about 10% by weight of the total nitrogen of the solution.
Priority Claims (2)
Number |
Date |
Country |
Kind |
2702284 |
Jan 1977 |
DEX |
|
2707639 |
Feb 1977 |
DEX |
|
Parent Case Info
This application is a continuation-in-part of application Ser. No. 870,322 filed Jan. 18, 1978 now abandoned and Ser. No. 877,873 filed Feb. 15, 1978 now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
3256083 |
Goring |
Jun 1966 |
|
3877920 |
Carlberg |
Apr 1975 |
|
Foreign Referenced Citations (4)
Number |
Date |
Country |
2702284 |
Aug 1978 |
DEX |
2707639 |
Aug 1978 |
DEX |
49-2361085 |
Jun 1974 |
JPX |
21590 OF |
Jan 1909 |
GBX |
Non-Patent Literature Citations (2)
Entry |
Olson et al., Fertilizer Technology & Use (2nd Ed.); 1971; Soil Science Society of America, Inc., Madison, Wisconsin, pp. 467, 483. |
Liquid Fertilizer Manual; NFSA, 910 Lehmann Bldg., Peoria, Ill.; 1967; pp. 17-1, 1-1, 12-9, 21-i. |
Related Publications (1)
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Number |
Date |
Country |
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870322 |
Jan 1978 |
|
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
877873 |
Feb 1978 |
|