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. 

Original news release