| Country | City | Institution |
| Bosnia i Herzegovina | Sarajevo | Faculty of Agriculture, University of Sarajevo |
| Bosnia i Herzegovina | Mostar | Faculty of Agriculture and Food Technology, University of Mostar |
| Bosnia i Herzegovina | Banja Luka | Faculty of agriculture, University of Banja Luka |
| Bosnia i Herzegovina | Bihać | Biotechnical Faculty, University of Bihac |
| Hungary | Budapest | Research Institute for Soil Science and Agricultural Chemistry of the Hungarian Academy of Sciences |
| Hungary | Debrecen | University of Debrecen, Centre of Agricultural Sciences, Faculty of Agriculture |
| Hungary | Gödöllo | Szent István University, Faculty of Agricultural and Environmental Sciences |
| Macedonia | Skopje | Poljoprivredni fakultet Univerziteta S. Ćirila i Metoda |
| Norway | Aas | Norvegian University of Life sciences (UMB) |
| Poland | Pulawy | IUNG-Institute of Soil Science and Plant Cultivation in Pulawy |
| Romania | Cluj-Napoca | University of Agricultural Sciences and Veterinary Medicine |
| Ruomania | Oradea | University of Environmental Protection |
| USA | Ames | Iowa State University |
| Thailand | Bangkok | King Mongkut's University of Technology Thonburi |
| Turkey | Bornova-Izmir | Ege University, Faculty of Agriculture |
| Belarus | Gorki | Belarusian State Agricultural Academy |
| Macedonia | Sv. Nikole | Balkan Greenhouse d.o.o. |
| Romania | Timișoara | Faculty of Agriculture in Timișoara |
| Russia | Ryazan | Ryazan State Agrotechnological University |
| Greece | Chania | Mediterranean Agronomic Institute of Chania |
| Switzerland | Frick | Research Institute of Organic Agriculture |
| Netherlands | Leeuwarden | Van Hall Larenstein University of Applied Sciences |
| Serbia | Novi Sad | University Business Academy in Novi Sad |
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