 Michigan State University's Christine Charles tells Brownfield research at the Kellogg Biological Station has been comparing conventional and no-till systems for the past 30 years. We're not paying for time in the field when it comes to labor, and then we're not paying for gas going out in the field. Those input reductions, those cost reductions make a huge difference in addition to our yield increases in our overall profitability. She says it took about 13 years to pay off upfront costs of no-till equipment.