Master Variable Rate Application Technologies With New Focus on Cotton Webcast

Memphis, TN -- Active light sensors and rate controllers are increasingly used to measure real-time variations in plant health and manage the variable rate application (VRA) of liquid inputs for cotton such as plant growth regulators, nitrogen, defoliants, and boll openers. 

A new Focus on Cotton webcast titled “Equipment Mounted Sensors for VRA in Cotton” helps cotton growers, consultants, and other industry experts understand the challenges and opportunities of using sensor-based VRA technologies in cotton production. 

This 20-minute talk by Randy Taylor, Extension Agricultural Engineer at Oklahoma State University, provides information that helps users understand: 

  • Differences between map and sensor based VRA
  • Limitations of sensors and VRA equipment
  • The importance of using and optimizing prescriptions for VRA
  • Adjusting rate controllers for use with sensor systems 
  • This webcast is available through the ‘Focus on Cotton’ webcast resource located at the Plant Management Network. ‘Focus on Cotton’ contains nearly 30 webcasts on various aspects of cotton crop management. These talks--freely accessible 24 hours a day, 7 days a week-- cover agronomic practices, crop protection, and ag engineering.  This resource also features a new and improved Cotton Extension Search tool, where users can conveniently search for extension resources across all U.S. land-grant universities serving cotton producers.

    All of these resources are freely available courtesy of Cotton Incorporated at



    Phil Bogdan, Plant Management Network, 651-994-3859, pbogdan [at] scisoc [dot] org

    Stacey Gorman, The Cotton Board, 870-226-1445, sgorman [at] cottonboard [dot] org

    About Plant Management Network:  All subscription-based information on the Plant Management Network website can be accessed for one low $39 annual subscription fee. Plant Management Network,, is a cooperative not-for-profit resource for the applied agricultural and horticultural sciences. Together with more than 80 partners, which include land-grant universities, scientific societies, and agribusiness, PMN publishes quality, applied, and science-based information for the practitioner.