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| pH | CE µS/cm | Soluble phosphorus ppm | Total phosphorus ppm | Organic carbon (%) | Total nitrogen (%) | Organic matter (%) | C/N | |
| H2O | KCl | ||||||||
| Soil from CNRA Bambey center (Senegal) | 7.78 | 7.46 | 218.4 | 8.915 | 3.896 | 0.631 | 0.057 | 1.087 | 11.15 |
| Casuarina rhizopheric soil | 8.05 | 7.64 | 287.3 | 8.433 | 3.685 | 0.717 | 0.079 | 1.24 | 9,11 |