کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
682426 | 888984 | 2010 | 6 صفحه PDF | دانلود رایگان |
Mesophilic methane yield of ensiled switchgrass grown in Eastern Canada was assessed. Switchgrass was harvested at three stages of development, corresponding to mid-summer, late summer and early fall in 2007. The regrowth of plots harvested in mid-summer was also harvested in early fall as a two-cut strategy. Specific methane yields decreased significantly with crop maturity from 0.266 to 0.309 NL CH4 g−1 VS in mid-summer to 0.191–0.250 NL CH4 g−1 VS in early fall; values were similar for the first harvest in late July and the second harvest (regrowth) in October. Approximately 25% more methane was produced by hectare for the two-cut strategy (2.90–3.44 × 106NL CH4 ha−1) compared to the one-cut strategy with a harvest in late summer (2.28–2.77 × 106NL CH4 ha−1). Methane yields from switchgrass grown under the cool humid climate of Eastern Canada suggest that this crop remains an interesting renewable alternative energy source.
Journal: Bioresource Technology - Volume 101, Issue 24, December 2010, Pages 9536–9541