David Vetter (right), CEO of Grain Place Foods, leads visitors on a tour of the farm near Marquette during a previous field day. Morning farm tours will be also be a part of this year’s field day on July 12, but lunch and the afternoon session will be moved to The Leadership Center in Aurora for a presentation by Ray Archuleta, known nationally as “the Soil Guy,” and a screening of the film “Dreaming of a Vetter Life.”