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Table 3 Methane production from Elodea and Elodea-straw mixture silages after 180 days of storage

From: Mixed silage of Elodea and wheat straw as a substrate for energy production in anaerobic digestion plants

Silage Specific methane yield (mL g−1 VS)
EN without ensiling 242.2 ± 36.4a
EN 218.6 ± 12.5a
ESC1 205.7 ± 12.5a, b
ESC2 166.1 ± 13.1b
ESG1 228.3 ± 27.6a
ESG2 224.5 ± 9.8a
Pz ***
Pz × Sb **
EN biomass n.s.
WS n.s.
SC11 235.9 ± 10.6
SC22 214.2 ± 7.7
SG13 275.4 ± 10.3
SG24 243.8 ± 6.0
  1. Different superscript letters in the same column indicate significant difference at p < 0.05
  2. Pz straw particle size effect, Pz × Sb interaction particle size × substrate, EN E. nuttallii biomass effect, WS wheat straw biomass effect, n.s. not significant
  3. 1SC1 chopped straw at 30% TS
  4. 2SC2 chopped straw at 45% TS
  5. 3SG1 ground straw at 30% TS
  6. 4SG2 ground straw at 45% TS
  7. 1, 2, 3, 4Data from Gallegos et al. [6]
  8. *p < 0.05, **p < 0.01, ***p < 0.001