| Treatments | Grains | |
| Number | Dry mass (g∙pot-1) | |
| MT8 | 58.25a | 24.58a |
| MT15 | 60.25a | 20.84a |
| MT23 | 51.00ab | 18.06a |
| Nitrogen control | 46.25ab | 17.18a |
| Absolute control | 26.75b | 3.46b |
| CV (%) | 24.6 | 25.2 |