Potassium Management in Cotton

January 2024 | 20 min., 32 sec.
by Katie L. Lewis
Texas A&M AgriLife Research

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​Two issues underlie potassium (K) management in cotton: (1) increased reports of K deficiency symptoms across the Cotton Belt and (2) indications of sufficient K by soil analysis but potential deficiencies later in the season due to low uptake. K availability and uptake are complicated by many interacting factors, including soil and plant factors, and the solution lies in fertilizer and management practices.

About the Presenter

Katie L. LewisKatie L. Lewis is an agricultural and environmental soil scientist and continually striving to enhance her understanding of the critical challenges currently facing agriculture and society. As the daughter of a South Texas farmer (Taft, San Patricio County), she was introduced at a young age to these challenges of sustainable agriculture and how they affect society. Dr. Lewis considers soil to be one of our most valuable natural resources, with the ability to produce food, feed, and fiber; recycle wastes; filter and break down contaminants; and sequester carbon. As an assistant professor of soil chemistry and fertility at Texas A&M AgriLife Research and Texas Tech University, Dr. Lewis is provided the opportunity through research and service to enhance the agricultural sustainability of the Texas High Plains region that is vitally important to both Texas and the nation, while helping to educate future scientists, farmers, society, and policymakers. Dr. Lewis received her BS in chemistry from Sam Houston State University in 2008. She received her MS and PhD in 2010 and 2014, respectively, from Texas A&M University. With a joint appointment at Texas A&M AgriLife Research in Lubbock (75% research) and Texas Tech University (25% teaching), Dr. Lewis is deeply engaged in research, teaching, and service.

Contact Information:
Email: katie.lewis@ag.tamu.edu


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