Dr. Ronaldo Pereira de Oliveira holds a degree in Electronic Engineering from Gama Filho University (1987), a Master's degree in Geoinformation for Rural Applications - Agricultural University - Wageningen (1996) and a PhD from Precision Agriculture Science Research Degree - The University of Sydney - Faculty of Agriculture, Food & Natural Resources 2009). He is currently researcher at the National Soil Research Center. His research focuses computer science, geoprocessing, intra-field variability, simulation scenarios, site-specific crop management and spatial variability.