 From the Iowa Agribusiness Radio Network studios in Des Moines, I'm Mark Magnuson, and welcome to Iowa Ag Matters. In today's show, I speak with Edgar Castro of Chevron about the new solar array that will help power the Chevron REG biodiesel facility in Mason City. Andy catches up with Aaron Putze of the Iowa Soybean Association, and Dustin tells us about rooftop gardening in Washington, D.C. It's time now to welcome our hosts, Dustin Huffman and Andy Peterson.