![](http://www.alamy.com/thumbs/6/08271174-F7EF-4ECC-98FE-E84C9218B5B8/BBW0E5.jpg)
switchgrass being grown in a research plot in Oklahoma to provide a biomass feedstock for an ethanol refinery
Size: 5025px × 3363px
Location: Guymon, Oklahoma, USA
Photo credit: © Jim Parkin / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: agri-business, agribusiness, agriculture, bioenergy, biofuels, biomass, cellulosic, crop, ethanol, farm, feedstock, field, grass, guymon, industry, oklahoma, perennial, petroleum, research, switchgrass, usa