Table 1.
Average pH-H2O, total Cd, total Zn, and CaCl2 extractable Cd and Zn concentrations in the topsoil (0–30 cm) of the field site.
| Block | pH-H2O | Aqua regia | CaCl2 extractable conc. | ||
|---|---|---|---|---|---|
| Cd mg kg-1 | Zn mg kg-1 | Cd mg kg-1 | Zn mg kg-1 | ||
| Low (I) | 6.78 ± 0.13 | 4.05 ± 0.83 | 234.3 ± 37.9 | 0.21 ± 0.06 | 11.15 ± 5.12 |
| Low (II) | 6.3 ± 0.3 | 6.1 ± 2.2 | 344 ± 128 | 0.46 ± 0.18 | 3.9 ± 5.6 |
| Mod (III) | 6.5 ± 0.2 | 8.0 ± 1.6 | 445 ± 93 | 0.50 ± 0.12 | 2.2 ± 1.3 |
| Mod-high (IV) | 6.4 ± 0.2 | 8.4 ± 1.9 | 488 ± 97 | 0.59 ± 0.12 | 3.0 ± 2.5 |
Values are mean ± SD of eight independent replicates.