Literaturrecherche

Literatur Schnug E, Haneklaus S (2008) Organic farming - challenges and implications. In: Haneklaus S, Hera C, Rietz RM, Schnug E (eds) 15th International Symposium of CIEC, September 27-30, 2004, Pretoria, South Africa : Fertilizers and Fertilization for Sustainability in Agriculture: The First World meets the Third World - Challenges for The Future ; proceedings. Iasi: Terra Nostra, pp 471-482