Dr. Richard Roth is an Assistant Professor and Extension Soil fertility Specialist at Iowa State University.  He joined the Department of Agronomy and at Iowa State in September 2023. His primary responsibilities are nitrogen and sulfur management. Dr. Roth's research and extension work focuses on engineering and optimizing nitrogen and sulfur management strategies to improve the efficiency and environmental sustainability of cropping systems in the Midwest. He is dedicated to enhancing the agronomic, economic, and environmental performance of these systems.

Dr. Roth holds a Ph.D. in Agronomy from Purdue University, which he earned in 2021. He also completed his bachelor's and master's degrees in Crop and Soil Science at Illinois State University. Prior to joining Iowa State University, Dr. Roth was an assistant professor and the extension grains and oilseeds agronomist in the Department of Crop and Soil Sciences at the University of Georgia.