Prof. Dr. Jens Gebauer (Rhine-Waal University of Applied Sciences)

Prof. Dr. Heiner Goldbach (University of Bonn, INRES Plant Nutrition)

PD Dr. Mauricio Hunsche (University of Bonn, INRES Horticultural Sciences)

Dr. Christa Lankes (University of Bonn, INRES Horticultural Sciences )

Prof. Dr. Peter Schulze Lammers (University of Bonn, Agricultural Engineering)