Soybean farming can produce more energy than it consumes. It takes about seven gallons of diesel fuel to farm an acre of soybeans. Each acre can produce about 70 gallons of clean-burning, renewable biodiesel. And yet biodiesel is only part of the value from that acre of soybeans.

http://www.sj-r.com/article/20140907/OPINION/140909641/-1/json