| Methods | Mean Infiltration rate (cm/h) | Std. Error of Mean (cm/h) |
| Observed | 44.44b | 9.12 |
| Green Ampt | 44.44b | 8.81 |
| Horton | 53.92b | 8.90 |
| Kostiakov | 90.76a | 13.95 |
| Philip | 44.52b | 9.11 |
| F-ratio | 3.89 |
|
| df | 4 |
|
| P-value | 0.004 |
|