Improving soil health is important for supporting human needs. A study in Denmark looked at how different farming practices affect soil quality over the long term. They found that using cover crops, animal manure, and crop rotation can help maintain good soil quality. Organic farming with grass-clover had the highest earthworm density, which is good for the soil. Overall, all the farming methods studied kept the soil in good condition, showing that a combination of factors is important for long-term soil health.