​​​Water Management: Precision Irrigation Scheduling and Site Drought Characterization

January 2015 | 22 min., 40 sec.
by Tyson B. Raper
The University of Tennessee

Audio IconSummary Webcast IconStudy Guide IconSlide Deck Icon​​​



​The benefits of irrigating cotton in humid environments are quite clear but unfortunately initiation, timing and terminating each irrigation event is often less than clear. Fortunately, there are a large number of devices currently on the market which provide very good insight into crop water status and can serve as a guide for triggering each irrigation event. This presentation will help consultants, county agents, producers, and other practitioners in the Mid-south and Southeastern regions understand the basic concepts of evapotranspiration and some of their options for gaining insight into crop water status. Specifically, viewers will learn: the framework for a single crop coefficient calculation of evapotranspiration, standard crop water use curves, approaches to increase water use efficiency (WUE) and gain some basic knowledge of a few of the currently-available irrigation scheduling tools. By the end of this presentation the viewer should know more about the seasonal trend of crop water use and what tools are currently available to help schedule irrigation events.

About the Presenter

Tyson B. RaperTyson B. Raper graduated from Auburn University with a BS in Agricultural Business and Economics. He completed his MS in Agronomy at Mississippi State University and received his PhD in Crop Physiology at the University of Arkansas. Raper’s research program is focused on the remote detection of nutrient deficiencies and site-drought characterization/irrigation scheduling using canopy temperature and soil moisture measurements.​

Contact Information:
Email: traper@utk.edu


In 2020, Grow webcasts had more than 110,000 views. Help support our mission to provide comprehensive high-quality, science-based resources to and for plant health researchers and practitioners at no cost.

PDMR submission guidelines and schedule information are available online.


Plant Health Progress is a peer-reviewed multidiciplinary, online journal of applied plant health.