Fig. 1

Cumulative specific methane yield (SMY) of Elodea without ensiling; Elodea silage without straw (EN), Elodea silage containing chopped straw at 30% TS (ESC1), Elodea silage containing chopped straw at 45% TS (ESC2), Elodea silage containing ground straw at 30% TS (ESG1), and Elodea silage containing ground straw at 45% TS (ESG2)