Organic corn at the Dickinson Research Extension Center. Photo courtesy Northern Plains Sustainable Agriculture Society Organic corn at the Dickinson Research Extension Center. Photo courtesy Northern Plains Sustainable Agriculture Society By Heidi Marttila-Losure February 11, 2013 Organic corn at the Dickinson Research Extension Center. Photo courtesy Northern Plains Sustainable Agriculture Society 2013-02-11 Heidi Marttila-Losure Share ! tweet