| Soil attributes | Soil test reference | ||
| High | Medium | Low | |
| OM (%) | 3.6 - 6.0 | 1.6 - 3.5 | 0.6 - 1.5 |
| N-NO3 (ppm) | 40 - 60 | 20 - 40 | 10 - 20 |
| P (ppm) | ˃11.0 | 5.5 - 11.0 | ˂5.5 |
| K (Cmol/kilo) | ˃0.6 | 0.3 - 0.6 | 0.2 - 0.3 |
| Ca (Cmol/kilo) | ˃10.0 | 5.0 - 10.0 | 2.0 - 5.0 |
| Mg (Cmol/kilo) | ˃30.0 | 1.3 - 3.0 | 0.5 - 1.3 |
| Zn (ppm) | ˃1.0 | 0.5 - 1.0 | ˂0.5 |