Prairie grasses for biofuel

David Tilman of the University of Minnesota and his coworkers believe that mixtures of prairie plants would make a better source of biomass raw material than monocultures. Prairies would provide more usable energy, greater greenhouse gas reduction and less agrochemical pollution per unit area than corn grain or soybean biodiesel. Sequestration of carbon dioxide is greater in grassland plants because more carbon accumulates in their extensive root systems than in those of plants grown in monomulture.