ABSTRACT.- Long-term interdisciplinary research rooted in Agricultural Long-Term Field Experiments (LTEs) is crucial for understanding the sustainability of agroecosystems. This is particularly relevant for designing agroecosystems that prevent further land and environment degradation and support farmers to achieve long--erm goals of sustainabilityby promoting internal ecological cycles, reducing the dependency on non-renewable and external inputs, and optimizing the use of water and energy. @2024 Agrociencia Uruguay.