The influence of soil decompaction on soil organic matter content over a 3-year period. VM (vertical mulching); WCM (wood chip mulching); WC (white clover).
| Treatment | Month 4 | Month 16 | Month 28 | Month 16 | Month 28 |
|---|---|---|---|---|---|
| Inside canopy | Outside canopy | ||||
| Control | 4.56a | 5.04a | 4.97a | 5.23a | 5.21a |
| VM | 5.33bc | 5.47ab | 4.97a | 5.71ab | 5.29a |
| WCM | 5.15ab | 7.23de | 7.22b | 6.44c | 6.50bc |
| VM + WCM | 5.87c | 7.30e | 7.48b | 6.90c | 6.90c |
| VM + WCM + worms | 5.89c | 6.08bc | 5.63a | 6.32bc | 6.14b |
| VM + WC | 5.60bc | 7.17de | 7.44b | 6.39bc | 6.43bc |
| VM + WC + worms | 5.73bc | 6.61cd | 6.86b | 6.52c | 6.09b |
| Significance over time | |||||
| Month (time) | 0.070 | 0.644 | |||
| Treatment | < 0.001 | 0.041 | |||
| Month (time) × treatment | < 0.001 | 0.270 | |||
Numbers within a column followed by a common letter are not significantly different according to Tukey’s honestly significance test (P = 0.05). For treatment description, see Materials and Methods.