The relationship between soil fertility and crop yield is vital for agricultural success. Soil fertility, defined by its nutrient content and structure, directly impacts plant growth and productivity. Fertile soils provide essential nutrients and support healthy root development, leading to higher crop yields. Conversely, degraded or nutrient-poor soils can result in low productivity, increased susceptibility to pests, and reduced crop quality. Sustainable soil management practices, such as crop rotation, cover cropping, and organic amendments, are essential for enhancing soil fertility and ensuring food security.