Thomas Nemecek, Gérard Gaillard, Hayo Van der Werf, Erik S. Jensen, Benoît Carroué, Yves Crozat, Knut Schmidtke, Michael Kreuzer, Jürg Fuhrer, Keith Smith, Christine Watson, Jean-Yves Dourmad, Frédéric Pres-Senda, Anne Schneider

Major conclusions and outlook. AEP workshop 8-19 November 2004 Agroscope FAL Reckenholz. Workshop.