Management of ATW (Committee for Technology in Viticulture)
Head of the Internationalen Arbeitskreises für Bodenbewirtschaftung und Begrünung (International Research Group for Soil Management and Vegetation)
Member of Giesco
Member of Forschungsring des Deutschen Weinbaus (Research Group Grape Physiology and Grape Refinement)
Editor Deutsches Weinbaujahrbuch
Co-Author "Terroir"
Map
