| Crop Nutrient Element | CPHA | OPA |
| Organic Carbon (g∙kg−1) | 1.00 | 1.7 |
| Nitrogen (g∙kg−1) | 0.90 | 0.2 |
| Phosphorous (g/kg) | 0.50 | 0.2 |
| Potassium (g∙kg−1) | 4.30 | 26.5 |
| Calcium (cmol∙kg−1) | 0.80 | 6.90 |
| Magnesium (cmol∙kg−1) | 0.30 | 3.10 |
| pH (H2O) | 7.50 | 8.30 |