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Initial characteristics of corn residue (CB) and pine bark (PB) biochar.
| CB | PB | |
|---|---|---|
| pH (1:10) | 8.8 | 8.1 |
| Total C (%) | 42.7 | 44.8 |
| Total N (%) | 0.9 | 0.2 |
| Total P (mg kg−1) | 39.6 | 61.6 |
| Proximate analysis (%) | ||
| Volatile matter | 30.2 | 22.2 |
| Fixed C | 46.4 | 63.9 |
| Ash | 23.4 | 13.9 |
