What is a primary benefit of using cover crops?

Using cover crops is primarily beneficial because they serve to reduce soil erosion and improve soil fertility. Cover crops, such as clover or rye, are planted during the off-season when main crops are not growing. Their roots bind the soil together, which significantly decreases erosion caused by wind and water. Additionally, these plants contribute organic matter to the soil when they die and decompose, enriching it with nutrients and enhancing its structure.

As cover crops grow, they can also support beneficial microbial activity in the soil and can even fix nitrogen in the case of legumes, leading to improved soil fertility. This natural enhancement of soil quality means that when main crops are planted, they have a better growing environment, which can lead to improved yields in the long run, though this is not the primary benefit directly associated with cover crops.