Dr. Graeme Hammer, University of Queensland, Agricultural Production Systems Research Unit, School of Land, Crop and Food Sciences, University of Queensland, Brisbane, Australia, and Greg McLean, Senior Research Scientist with APSRU in Toowoomba will present: “The dynamics of soil water capture and use: experimental and modelling studies in grain crop water use efficiency” by Graeme L. Hammer and E.J. van Oosterom.