A visit to switchgrass? trial plots run by Iowa State University researchers; near Ames, IA. Photo by CL Williams, 2010.
Great Lakes Bioenergy Research Center: http://glbrc.org/education/educationalmaterials
Bioenergy 101: http://glbrc.org/education/bioenergy101
Farm Energy, UW Extension: http://www.extension.org/ag energy