What method allowed soil to recover from cash crop?

The method that allowed soil to recover from cash crops is often referred to as crop rotation, particularly incorporating cover crops into the rotation. This practice enhances soil fertility, structure, and microbial activity by alternating cash crops with legumes or other plants that replenish nutrients. Additionally, techniques such as no-till farming and the use of organic amendments, like compost, can further improve soil health and resilience. These methods help prevent soil degradation and maintain agricultural productivity over time.