| Treatments for green manure production | Maize plants | ||
| Dry matter (g/pl) | Total N content (g/pl) | %15Na.e. | |
| R0 | 79.29b | 1.06d | 0.0325b |
| R1 | 100.67a | 1.43b | 0.0378a |
| R2 | 98.72a | 1.41bc | 0.0377a |
| R1 + R2 | 99.24a | 1.55a | 0.0386a |