| Mineral-N | At start | Atenda | ||||||
| Kg・ha−1 | Small group | Large group | Small group | Large group | ||||
| STb | LSc | Control | STb | LSc | Control | |||
| NH4-N | 10 | 7 | 80a | 36b | 11c | 45a | 28b | 11c |
| NO3-N | 37 | 33 | 1b | 1b | 2a | <1c | 1b | 2a |