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Julius-Kühn-Institut (ehemals Bundesforschungsanstalt für Landwirtschaft), Institut für Pflanzenbau und Bodenkunde, Bundesallee 50, D-38116 Braunschweig, Germany
Freiburger Zentrum für Datenanalyse und Modellbildung, Universität Freiburg, Eckerstr. 1, und Freiburg Institute for Advanced Studies (FRIAS), Albertstr. 19, D-79104 Freiburg, Germany