Building soil fertility in pastures goes beyond simple soil fertilization; it requires strengthening the foundation of this process. This foundation is based on two pillars: the increase in organic matter content and the efficiency of nutrient cycling. The ultimate goal is to improve the biological, chemical, and physical properties of the soil. Together, these properties will enhance soil quality and fertility, leading to increased pasture productivity. Without strengthening this foundation, building soil fertility in pastures will not be a sustainable objective, from both an economic and agronomic perspective. This text aims to discuss the importance of management strategies that contribute to the building of soil fertility in pastures and the direct and indirect ways of monitoring this fertility.