David Cross (left), Northern Australian Crop Research Alliance (NACRA) director, Jim Engelke NACRA director, professor Mike Bell, University of Queensland, Jack Daniel, NACRA research manager, Kaara Klepper, senior manager soils, nutrition, agronomy and farming systems with the Grains Research and Development Corporation, Jodie Pengel, NACRA research agronomist and John Foss, NACRA chairman, at the maize nitrogen trial site at the field day.