"Agricultural development within the rural-urban continuum” By Prof. Dr. F. Asch; for Organizing committee, Prof. Dr. S. Dabbert, President, University of Hohenheim ”According to projections of the UN, 70% of the global population will be living in urban areas by 2050” ”on this basis, Prof. Dr. F. Asch, officiated and welcomed the over 800 participants, and at the same time thanked the main sponsors of Tropentag conference.