Table 1 Attribute data of the rice husk Biochar used in the experiment.
Type | Attribute value | Type | Attribute value |
|---|---|---|---|
pH | 10.7 | Total oxygen | 28.66% |
Organic carbon | 471.0 g.kg–1 | Total calcium | 1.08% |
Total nitrogen | 5.2 g.kg–1 | Total magnesium | 0.19% |
Total phosphorus | 3.46 g.kg–1 | Total sulfur | 0.31% |
Total potassium | 14.93 g.kg–1 | BET-specific surface area | 223.7 m2.g–1 |
Cation exchange capacity | 5.29 cmol(c+).kg–1 | Total pore volume | 0.118 cm3.g–1 |
Exchangeable calcium | 1.97 cmol.kg–1 | Micropore volume | 0.078 cm3.g–1 |
Exchangeable magnesium | 5.62 cmol.kg–1 | Average pore diameter | 2.115 nm |
Total basic functional groups content | 2.4 cmol.kg–1 | Porosity | 82.5% |
