Source of variation | df | log (IRB number/g dry soil) | Fe II (µg/g dry soil) | ||
|
| F | p | F | p |
Drainage | 3 | 3.292 | 0.024* | 0.464 | 0.708ns |
Period | 11 | 22.153 | <0.0001** | 21.759 | <0.0001** |
Drainage x Period | 33 | 2.249 | 0.001** | 1.935 | 0.007** |