Source: Purdue University

Corn cobs could provide a future energy source, but farmers would have to receive a much higher price than previously thought to cover their costs and turn a profit, according to a Purdue University study.

Farmers would need to receive about $100 per dry ton from biofuels companies to persuade most to add a cob-collection operation during fall corn harvest, said agricultural economist Wallace Tyner and graduate student Matthew Erickson.

"That price is considerably higher than earlier estimates," Tyner said. "So while cobs could potentially become an important bioenergy feedstock, the high cost represents quite an impediment to development of the industry unless there are government subsidies."

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