Residue retention and minimum tillage boost soil health in croplands
Conservation tillage practices like no-tillage and reduced tillage with residue retention can improve soil quality in croplands. A global study analyzed data from 264 studies since 1980 and found that these practices increased soil density, aggregate stability, water retention, and pH levels. No-tillage with residue retention had the most significant positive impact on soil properties, including increasing water stable aggregates by 54.9%. Overall, conservation tillage methods were shown to have beneficial effects on soil health, with the extent of these effects varying depending on the duration of the experiment.