Dr. Marsh obtained a BS degree in Plant Science and a MS in Soil Science and Biometeorology at Utah State University. He received his PhD in Soil Science at the University of Kentucky. He was hired as Assistant Professor/Agronomist-in-Charge of the Kansas State University Cornbelt Experiment Field. Dr. Marsh returned home to California when he was hired as University of California Cooperative Extension (UCCE) Farm Advisor and Director of the Shafter Research and Extension Center. He currently serves as UCCE County Director and Agronomy Advisor in Kern County. He has written 370 research papers, technical reports and extension articles.
Title : Nitrogen fertility in potato for optimum production and environmental stewardship