Along with the Quad County Corn Processors in Galva, Iowa, and Plymouth Energy in Merrill, Iowa, another plant has signed commercial agreements with Syngenta for the 2013 growing season: Bonanza BioEnergy of Garden City, Kan., completed a trial in 2012, according to Todd Axtell, the South Dakota-based Enogen account lead for Syngenta.

"The 90-120-day trials allow the plants to know how much grain with the Enogen trait technology should be included in the grind. That way we know how much Enogen corn to plant," he explains.

Production trials are underway in 2013 with two additional plants in Nebraska and one in Iowa. By design, those ethanol plants are not located directly next to modified starch plants. "We only deliver this grain to ethanol plants and are testing the use of GPS tracking on the trucks to alert growers if a truck is going off track," Axtell says.