Soil depth (cm) | Horizontal distance (cm) | Vertical distance (cm) | |||
0 | 30 | 60 | 0 - 30 | 30 - 60 | |
0 - 20 | 14 | 14 | 7.0 | 7.0 | 14 |
20 - 40 | 11 | 18 | 11 | 7.0 | 18 |
40 - 60 | 11 | 14 | 11 | 11 | 18 |
60 - 80 | 11 | 11 | 18 | 35 | 14 |