Value of In-Season Nutrient Management

December 2022 | 44 min., 8 sec.
by Brian Arnall
Oklahoma State University

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​This presentation discusses the opportunities and challenges associated with in-season nutrient management. The conversation begins with discussion of Katie Lewis’s data on the nutrient uptake of old and new cotton cultivars. Then the discussion explores the management and application methods of in-season nutrients, with a focus on nitrogen and potassium.

About the Presenter

Brian ArnallBrian Arnall is a precision nutrient management Extension specialist for Oklahoma State University. He has served in that role since earning his doctorate in soil science from Oklahoma State University in 2008. Brian’s Extension, teaching, and research efforts are focused on precision technologies and nutrient management in all of Oklahoma’s cropping systems, with an emphasis on site-specific techniques. He works closely with Extension educators and industry personnel to improve nutrient management practices among Oklahoma producers that will lead to increased profitability. Ongoing studies are focused on developing methods to use sensor-based technologies, improving the timing and placement of nitrogen fertilizer, increasing nutrient use efficiency, and improving recommendations for phosphorus fertilizer. In addition, Brian has a crew of developers producing iOS and Android applications.

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