- Institute of Geography (GIS and Remote Sensing group), University of Cologne, Cologne, Germany
- Department of Plant Nutrition, China Agricultural University, Beijing, China
- ITC, Faculty of Geo-Information Science and Earth Observation of the University of Twente, Enschede, The Netherlands
- Environmental Management and Byproduct Utilization Laboratory, USDA-ARS, Beltsville, MD, USA
- Areawide Pest Management Research Unit, USDA-ARS, College Station, TX, USA
- Department of Crop and Soil Sciences (Precision Agriculture Group), Colorado State University, Fort Collins, CO, USA
- Agriculture and Agri-Food Canada (Vegetable Nutrition and Crop Management Group), Quebec, Canada