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