Dr. Mario Tenuta is the Senior Industrial Research Chair in 4R Nutrient Stewardship, and Professor of Applied Soil Ecology at the University of Manitoba. The 4Rs are comprised of right fertilizer, right rate, right time, right place. The 4R Industrial Research Chair Program is advancing research in 4R nitrogen management practices on the Canadian Prairies, to identify solutions to achieving reductions in N2O emissions, as well as improved soil health and crop productivity. It is a joint project of the Natural Sciences and Engineering Research Council of Canada (NSERC), the Western Grains Research Foundation (WGRF) and Fertilizer Canada. For FuelPositive, Mario is leading a research project to showcase that by using 4R best practices, used in combination with anhydrous ammonia and a nitrification inhibitor, it is possible for farmers to reduce nitrate emissions well beyond 30%, and to better match fertilizer rate to crop needs, while achieving the same or higher yields.