Christian Andres – a young scientist and a specialist on yam – a native plant in West Africa, is one of the 3 award winners of the Hans H. Ruthenberg Award for Graduates. This is a prestige award in the academia of agriculture for diploma or master thesis that contribute on food security research and reduction of poverty in developing countries. He is now working as a research assistant for production system at the Research Institute for Organic Agriculture (FiBL). Chritian wrote his master thesis at ETH Zurich about fertilization of Yam with poultry manure and its effects on nutrient dynamics and nutrient use efficiency.