Dr. Steve Phillips is North American Program Director for the International Plant Nutrition Institute (IPNI). IPNI is a not-for-profit, science-based organization dedicated to the responsible management of plant nutrients for the benefit of the human family with a focus on improving global food security. Dr. Phillips' duties include development and dissemination of educational materials regarding the efficient and effective use of plant nutrients, with a focus on precision agriculture.

Prior to joining IPNI in 2007, Dr. Phillips was an Associate Professor at Virginia Tech where his program focused on variable-rate N management and the development of N recommendation algorithms for sensor-based fertilization of wheat and corn in the mid-Atlantic region. Dr. Phillips has authored/co-authored numerous peer reviewed journal articles, extension and technical publications, and has participated in precision agriculture workshops and training events in several different countries.

He currently serves as chair of the IPNI international workgroup on precision agriculture and the InfoAg Conference. Dr. Phillips holds M.S. and Ph.D. degrees from Oklahoma State University.