Matthias Stettler
Bern University of Applied Sciences
School of Agricultural, Forest and Food Sciences HAFL
Länggasse 85
CH-3052 Zollikofen
Thomas Keller
Agroscope
Reckenholzstrasse 191
CH-8046 Zürich
Thomas Keller
Swedish University of Agricultural Sciences (SLU)
Department of Soil & Environment
Box 7014
SE-75007 Uppsala
Sweden
Per Schjønning, Mathieu Lamandé
Aarhus University Faculty of Science and Technology
Research Centre Foulum
P.O. Box 50
DK-8830 Tjele
Denmark
Federal Office for Agriculture (FOAG), Switzerland
Federal Office for the Environment FOEN, Switzerland
Ministry of Food, Agriculture and Fisheries of Denmark, Denmark
The Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning (Formas), Sweden
Stiftelsen Lantbruksforskning (SLF) - Swedish Farmers’ Foundation for Agricultural Research, Sweden