Perschke, YML; Feng, L; Fontaine, D; Nikolausz, M; da Rocha, UN; Borim Carrêa, F; Ward, AJ; Eriksen, J; Sørensen, P and Møller, HB (2019) Biogas production by co-ensiling catch crops and straw, effect of substrate blend and microbial communities. Poster at: 16th IWA World Conference, Delft, the Netherlands, 23-27 June 2019.