What is a nurse crop used for in planting?

A nurse crop plays a vital role in agricultural practices, particularly in the establishment of perennial crops. The primary function of a nurse crop is to compete with weeds, thereby reducing weed pressure during the crucial early growth stages of the perennial plants. By providing competition, the nurse crop helps ensure that the more valuable perennial plants have a better chance to establish strong root systems and become well-adapted to their environment. This competitive aspect is especially important in promoting healthy growth and maximizing yield potential once the nurse crop is removed.

While reducing soil erosion, providing shade, and enhancing drainage are important agricultural considerations, they do not specifically capture the essential purpose of a nurse crop in establishing perennials. Reducing soil erosion is typically addressed through practices like cover cropping or contour farming. Providing shade is relevant for certain crops but is not the primary purpose of nurse crops. Enhancing drainage pertains to soil management practices and does not specifically relate to the role of a nurse crop in supporting perennial establishment.