Advertise in Print | Subscriptions
Published June 24, 2014, 12:00 AM


Bill and Karolyn Zurn farm near Callaway, Minn. Here, they stand in a field of soybeans. They're longtime promoters of using soybean oil in biodiesel. Minnesota begins a higher biodiesel mandate on July 1.

Read the article: Soybean growers welcome higher biodiesel blend, but there are critics