| Treatment # | UAN | Humic acid | Humic acid/UAN ratio |
|
| Gallons/acre | Gallons/acre |
|
| 1 | 15 | 0 | 0% |
| 2 | 15 | 1.5 | 10% |
| 3 | 15 | 3 | 20% |
| 4 | 15 | 4.5 | 30% |
| 5 | 25 | 0 | 0% |
| 6 | 25 | 2.5 | 10% |
| 7 | 25 | 5.0 | 20% |
| 8 | 25 | 7.5 | 30% |
| 9 | 35 | 0 | 0% |
| 10 | 35 | 3.5 | 10% |
| 11 | 35 | 7 | 20% |
| 12 | 35 | 10.5 | 30% |
| 13 | 0 | 0 | 0% |