| Soil property | P | Calloway | Creldon |
| Sand (g·g−1) | <0.01 | 0.09b† | 0.24a |
| Silt (g·g−1) | <0.01 | 0.79a | 0.67b |
| Clay (g·g−1) | <0.01 | 0.12a | 0.09b |
| pH | <0.01 | 7.46a | 6.03b |
| Electrical conductivity (dS·m−1) | <0.01 | 0.17a | 0.13b |
| Total C (%) | <0.01 | 1.14b | 1.65a |
| Total N (%) | <0.01 | 0.11b | 0.1a |
| Soil organic matter (%) | <0.01 | 2.6b | 3.4a |
| Mehlich-3-extractable (mg·kg−1) | |||
| P | <0.01 | 11.4b | 17.0a |
| K | <0.01 | 46.1b | 113a |
| Ca | <0.01 | 2006a | 1115b |
| Mg | <0.01 | 276b | 328a |
| S | 0.15 | 12.0a | 13.0a |
| Na | <0.01 | 29.8a | 10.4b |
| Fe | <0.01 | 304a | 112b |
| Mn | <0.01 | 244a | 101b |
| Zn | <0.01 | 2.6b | 4.2a |
| Cu | <0.01 | 1.6a | 1.2b |