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Metallic ion effect on soil.
| Treatment | Na | K | Mg |
|---|---|---|---|
| Wfbb | 0.06 ± 0.001 | 2.86 ± 0.9 | 2.91 ± 0.2 |
| Bcb | 0.24 ± 0.01 | 3.68 ± 0.7 | 3.01 ± 0.9 |
| Bga | 0.55 ± 0.02 | 9.27 ± 0.9 | 7.96 ± 0.6 |
| If a | 0.64 ± 0.03 | 11.41 ± 1.1 | 7.17 ± 0.5 |
Bg = biochar grass; Bc = biochar chat; If = inorganic fertilizer; Wfb = controlled plot (free from biochar and fertilizer); Na = sodium; K = potassium; Mg = magnesium. Treatments with the same letters were not significantly different at p ≤ 0.05.
