​Episode 5 - In-Season Nitrogen Applications

June 2021 | 42 min.
by Seth Byrd, Steve Brown, Hunter Frame, and Randy Norton
Oklahoma State University, Auburn University, Virginia Tech, and The University of Arizona (respectively)


​Steve Brown, Hunter Frame, and Randy Norton discuss in-season nitrogen applications, including preferred timings and methods, differences within regions across various production systems, and potential issues that can arise because of the interaction between in-season applications and weather conditions. Podcast hosted by Seth Byrd.​

About the Presenter

​​Seth ByrdSeth Byrd is the Extension cotton specialist for Oklahoma State University. He received a bachelor’s degree in agronomy from North Carolina State University, a master’s degree in agronomy from the University of Florida, and a PhD in crop and soil science with a focus on cotton agronomics from the University of Georgia. (OSU photo by Todd Johnson)​

​​Steve M. BrownSteve M. Brown is a 1978 graduate in agronomy and soils from Auburn University and later earned MS and PhD degrees in agronomy/weed science at Auburn and Texas A&M, respectively. He worked as an assistant county agent in a cotton pest management role for a couple of years in northern Alabama and then served as a research associate in a Cotton Incorporated-funded project on no-till cotton from 1980 to 1984. From 1987 until 2008, he served as an Extension weed scientist and cotton agronomist for the University of Georgia in Tifton. He worked for a major seed and biotechnology company from 2008 until 2019, when he joined the faculty at Auburn. His entire career has focused on cotton.

Hunter Frame ​​Hunter Frame has been the field crops agronomist at Virginia Tech’s Tidewater Agricultural Research and Extension Center since 2012. In this role, he serves as Virginia’s cotton specialist and manages the Official Cotton Variety Testing program; the bulk of his research is focused on soil fertility an​d plant nutrition issues in cotton production. Projects in Dr. Frame’s research program have focused on nitrogen, sulfur, potassium, and micronutrients. Understanding how cotton yields can be improved through managing nutrients and other agronomic inputs is paramount to enhancing the profitability and sustainability of U.S. cotton producers. This is the overarching goal of Dr. Frame’s research and Extension program.

Randy Norton ​​Randy Norton is an associate regional Extension specialist with the University of Arizona and also serves as the resident director of the Safford Agricultural Center. He has a BS degree in plant sciences with an emphasis in crop science and MS and PhD degrees in soil and water science with an emphasis in soil fertility and soil chemistry. The primary focus of his work is improving the efficiency and sustainability of desert agricultural systems through a broad research and Extension program directed at solving production chal​lenges faced by growers across Arizona. Areas of research and Extension focus include soil fertility, variety evaluation, and management of certain pests and diseases in Arizona crop production systems.


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