“It’s 36 percent more efficient to grow grain for food than for fuel,” said the lead author of a paper that looked at 17 years worth of data to help settle the food versus fuel debate.
“The ideal is to grow corn for food,” said Ilya Gelfand , a Michigan State University postdoctoral researcher, “then leave the leftover stalks and leaves on the field for soil conservation and produce cellulosic ethanol with the other half.”
“It comes down to what’s the most efficient use of the land,” said Phil Robertson, University Distinguished Professor of crop and soil sciences and one of the paper’s authors. “Given finite land resources, will it be more efficient to use productive farmland for food or fuel? One compromise would be to use productive farmland for both — to use the grain for food and the other parts of the plant for fuel where possible. Another would be to reserve productive farmland for food and to grow biofuel grasses — cellulosic biomass — on less productive land.” (more…)