| Source of variability | Phenol | Lignin | Total isoflavones | N | P | K | Ca | Mg | Mn | B | Zn | Fe | Cu |
| Year (Y) | *** | * | ** | * | * | * | * | ** | * | ** | * | * | * |
| Treatment (T) | * | * | * | * | * | ** | ** | *** | * | * | * | * | * |
| Cultivar (Cv) Irrigation (Ir) | * | * | * | ** | * | * | * | * | * | * | NS | * | * |
| Y × T | ** | * | *** | ** | * | * | * | ** | ** | ** | * | * | * |
| Y × Cv | NS | * | ** | NS | ** | * | NS | NS | ** | * | * | * | * |
| Y × Ir | * | ** | *** | ** | * | ** | ** | * | * | *** | ** | * | * |
| T × Cv | * | * | * | NS | * | ** | ** | NS | NS | * | ** | * | * |
| T × Ir | ** | * | *** | NS | * | ** | ** | NS | NS | ** | * | * | ** |
| Cv × Ir | * | * | ** | * | * | ** | ** | * | * | ** | * | ** | ** |
| Y × T × Cv | ** | ** | *** | * | * | * | * | * | * | * | ** | * | * |
| Y × T × Ir | * | * | *** | ** | ** | * | * | * | * | * | * | * | ** |
| T × Cv × Ir | * | ** | ** | * | * | ** | ** | ** | * | ** | * | * | ** |
| Y × Cv × Ir | * | * | *** | * | * | * | * | * | * | ** | * | * | * |
| Y × T × Cv × Ir | * | * | *** | ** | ** | * | * | * | * | *** | ** | * | * |