My research focus is on diversified cropping systems in arable farming, especially intercropping. The development of diversified cropping systems requires an interdisciplinary natural and social science approach in agroecology. I study practical design aspects of intercropping systems, e.g., variety selection or sowing density, and how these affect system performance. To provide the foundation for intercropping system design, I study ecological interactions between crop species, the role of plant traits, and the interactions of crops and their environment. This experimental work is complemented by qualitative social science and participatory methods to incorporate knowledge from farmers and other food system actors.