| Treatment | 2014 | 2015 |
| kg·ha−1 | ||
| 1 | 0N, 0P | 0N, 0P |
| 2 | 23N, 0P | 23N, 0P |
| 3 | 46N, 0P | 46N, 0P |
| 4 | 69N, 0P | 69N, 0P |
| 5 | 92N, 0P | 92N, 0P |
| 6 | 0N, 20P | 0N, 20P |
| 7 | 23N, 20P | 23N, 20P |
| 8 | 46N, 20P | 46N, 20P |
| 9 | 69N, 20P | 69N, 20P |
| 10 | 92N, 20P | 92N, 20P |
| 11 | 69N, 10P | 92N, 10P |
| 12 | 69N, 30P | 92N, 30P |