| Depth (cm) | Wet treatment (%) | Dry treatment (%) |
At the beginning of treatment | 10 | 21.8 ± 1.39 | 24 ± 1.08 |
(Jun. 15) | 30 | 22.5 ± 2.14 | 22.5 ± 0.89 |
After 2-month treatment | 10 | 23.6 ± 1.93 | 5.4 ± 0.15 |
(Sep. 13) | 30 | 20.0 ± 1.75 | 23.6 ± 0.92 |