| % Carbon content | |
| pH | −0.306* |
| Chloride mg/kg | 0.092 |
| Phosphorus abs | −0.119 |
| Phosphorus conc. | −0.131 |
| Magnesium ppm | −0.318* |
| Sodium ppm | −0.02 |
| Manganese ppm | −0.270* |
| Iron ppm | −0.470* |
| Potassium ppm | 0.056 |
| Calcium ppm | −0.121 |
| Aluminum ppm | 0.331* |
| Calcium cmol/kg | −0.125 |
| Magnesiumcmol/kg | −0.319* |
| Potassiumcmol/kg | 0.057 |
| CEC cmol/kg | −0.176 |
| % Nitrogen | 0.222 |
| % sand | −0.037 |
| % Clay | 0.036 |
| % Silt | 0.017 |
| % loss of ignition | 0.103 |