1. Department of Bioresource Engineering, Faculty of Agriculture and Environmental Sciences, McGill University, Ste-Anne-Bellevue, QC, Canada
2. Institute of Crop Science, Fertilization and Soil Matter Dynamics, University of Hohenheim, Stuttgart, Germany
3. Institute of Agricultural Sciences in the Tropics (Hans-Ruthenberg-Institute), Agroecology in the Tropics and Subtropics, University of Hohenheim, Stuttgart, Germany