Table 1 Physical and chemical properties of the experimental soil and biochar before planting and treatment application
Parameters | Soil | Biochar | |
|---|---|---|---|
Values | Rating | ||
pH water, 1:2.5 | 4.87 | Strongly acidic | 9.4 |
Organic carbon (%) | 3.15% | Medium | 18.01% |
Organic matter (%) | 3.38% | Low | 31.06% |
Cation exchange capacity (CEC) | 22.12 meq/100g soil | Medium | 63.23 meq/100 g soil |
Total nitrogen | 0.17% | Medium | 1.55% |
Available phosphorus | 3.41 ppm | Very low | 13.63 ppm |
Texture | – | ||
Clay | 26 | – | |
Silt, and | 35.7 | – | |
Sand | 38.3 | – | |
Textural class | Loam | – | |