Crop residue refers to the leftover plant material that remains in the field after harvesting crops. This includes stalks, leaves, and roots that are not collected during the harvesting process. Crop residue can vary depending on the type of crop, such as corn, wheat, or rice. Farmers often leave crop residue on the field to improve soil health. It helps prevent soil erosion, retains moisture, and adds organic matter as it decomposes. Additionally, crop residue can provide habitat for beneficial organisms and contribute to sustainable farming practices.