The annual Conference on Tropical and Subtropical Agricultural and Natural Resource Management (TROPENTAG) is jointly organised by the universities of Bonn, Göttingen, Hohenheim, Kassel-Witzenhausen, Hamburg, Zurich as well as by the Council for Tropical and Subtropical Research (ATSAF e.V) in co-operation with the GTZ Advisory Service on Agricultural Research for Development (BEAF).

International Research on Food Security, Natural Resource Managementand Rural Development World food system – A contribution from Europe ; "The Tropentag is a development-oriented and interdisciplinary conference. It addresses issues of resource management, environment, agriculture, forestry, fisheries, food, nutrition and related sciences in the context of rural development, sustainable resource use and poverty alleviation worldwide."