| Earthworms biomass in g∙m−2 | 2017 year | 2018 year | average |
| ecological farming (5 years) | 44.69 | 66.59 | 55.64 |
| ecological farming (3 years) | 37.34 | 102.68 | 70.01 |
| conventional farming | 10.61 | 0 | 5.305 |