Corn stalks and leaves are the most profitable feedstocks for cellulosic biofuels in the Great Lakes region, according to a study funded by the Department of Energy. However, this could change if government provides incentives to promote "the water-quality and climate-change benefits from perennial crops such as switch grass, poplar trees and mixed grasses," said Scott Swinton, one of the researchers. The report is published in the March-April 2010 edition of Agronomy Journal.

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