Switchgrass silage for methane production as affected by date of harvest.

The article presents the study which determined the effects of harvest date on switchgrass (Panicum virgatum L.) forage and silage characteristics and their relationship to specific methane yield from anaerobically digested switchgrass silage. It claims that switchgrass is native of North America. The grass has been studied as an energy crop in the U.S. and Canada.