Memberships in Scientific Associations

  • Research Institute of Organic Agriculture (FiBL), Member of the Executive Board
  • International Society of Organic Agriculture Research (ISOFAR)
  • German Society for Crop Sciences
  • German Association of University Professors and Lecturers (DHV)
  • German Soil Science Society (DBG)
  • Association of German Scientists (VDW)

Memberships in non-academic Associations

  • Scientific Advicory Board for Agricultural Politics at the Federal Ministry of Food, Agriculture and Consumer Protection - till 2012
  • Advisory Committee Organic Agriculture (BLE)
  • Scientific Advisory Council of the Federal Federation Food Processors
  • Curatorship of the Zukunftsstiftung Landwirtschaft
  • Advisory Committee of the journal Ökologie & Landbau
  • Maybe Education Group of documenta13
  • Steering Committee Gesellschaft für Ressourcenschutz (GfRS)