| Treatment | Location and soil depth (cm) | |||
| Chillán | Talca | |||
| 0 - 20 | 20 - 40 | 0 - 20 | 20 - 40 | |
| C | 6.21 ab | 6.29 a | 6.62 a | 6.88 a |
| CF | 5.93 b | 6.20 a | 6.12 c | 6.81 a |
| PC1 | 6.08 ab | 6.23 a | 6.48 ab | 6.77 a |
| PC2 | 6.13 ab | 6.29 a | 6.41 ab | 6.74 a |
| PC3 | 6.29 a | 6.33 a | 6.26 bc | 6.69 a |
| CV (%) | 2.45 | 1.39 | 2.01 | 1.02 |