Table 4.
Mean lettuce biomass per pot in response to slug control (SC), watering regime (W) and earthworms (EW) and their respective interactions.
| Factors | Df | Sum Sq | Mean Sq | F value | Pr(>F) |
|---|---|---|---|---|---|
| Slug control (SC) | 3 | 954 | 318.1 | 1.978 | 0.126 |
| Watering (W) | 1 | 128 | 127.8 | 0.795 | 0.376 |
| Earthworms (EW) | 1 | 23 | 23.2 | 0.144 | 0.705 |
| SC:EW | 3 | 244 | 81.5 | 0.507 | 0.679 |
| SC:W | 3 | 212 | 70.5 | 0.439 | 0.726 |
| EW:W | 1 | 63 | 63.2 | 0.393 | 0.533 |
| SC:W:EW | 3 | 239 | 79.7 | 0.495 | 0.687 |
Df = degrees of freedom, Sum Sq = sum of squares, Mean Sq = mean square, Pr (>F) = p value.