Side-Dress Nitrogen Management in Cotton Production Systems

July 2021 | 22 min., 52 sec.
by Audrey Gamble
Auburn University


​Of the three essential macronutrients needed for cotton growth, nitrogen is often required in the largest amount and is the most frequently applied fertilizer in cotton production systems. Nitrogen can be difficult to manage because it is susceptible to several soil-loss pathways, including leaching, volatilization, and denitrification. Additionally, excess nitrogen can create problems such as delayed maturity and increased susceptibility to insect damage and diseases. This presentation covers management practices to reduce soil nitrogen loss and to improve nitrogen use efficiency in cotton. Appropriate rates, sources, timing, and placement of nitrogen fertilizers for southeastern cotton production systems will be discussed.

About the Presenter

​Audrey Gamble​Audrey Gamble is an assistant professor in the Department of Crop, Soil, and Environmental Sciences at Auburn University and an Extension soil scientist for the Alabama Cooperative Extension System. She received a PhD in soil chemistry from the University of Delaware and an MS degree in agronomy and soils from Auburn University. Her research and Extension programming focuses on 1) providing soil fertility recommendations for major row crops, including cotton, corn, peanuts, and soybean, and 2) evaluating soil conservation practices (cover cropping and conservation tillage) in row crop production systems. 

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