| Treatment No. | 2016 | 2017 | ||
| Leaf % N | Leaf % N | |||
| EC Zone 1 | EC Zone 2 | EC Zone 1 | EC Zone 2 | |
| 1 | 3.9 a* | 4.0 a | 3.7 a | 4.0 a |
| 2 | 4.0 a | 3.6 a | 3.8 a | 3.6 a |
| 3 | 3.2 b | 3.2 b | 3.1 b | 3.2 b |
| 4 | 3.3 b | 3.4 b | 3.1 b | 3.4 b |
| 5 | 3.2 b | 3.3 b | 3.3 b | 3.3 b |
| 6 | 3.3 b | 3.3 b | 3.4 b | 3.3 b |