Limited/Supplemental Irrigation Webinar Series

Soil Science Society of America Webinars


Soil Science Society of America presents

a two part webinar series on Limited/Supplemental Irrigation

Planned dates: July 24 and 31, 2014
for more information on the series visit the SSSA Education page


Webinar Times:  1:00 to 2:00 pm Eastern/12:00 Noon to 1:00 pm Central/
11:00 am to 12:00 Noon Mountain/10:00 am to 11:00 am Pacific


Registration is required for each webinar and must be done at least one hour prior to start time.
You must click the Continue to payment button on the last registration screen in order for your registration to be completed.

Once registration is complete, you will receive an email that contains a GoToMeeting link.  You must register with GoToMeeting in order to receive the connection information.  Please contact Nate Ehresman with questions.

* Registration for the webinars include access to the live webinar and a link to a recording of the webinar.

The recording link will be emailed within one week and will be available for 30 days after you receive the email.  This link can only be used by the registrant.



Limited/Supplemental Irrigation Webinar Series Module 2

Supplemental Growing-Season Irrigation: When and How Much - July 31, 2014


Cost: $25.00 for members and certified individuals.

$40.00 for Non-members.



Webinar Description: The growing season may have periods of 1 to 3 weeks with limited or no precipitation, and the crop may begin to show stress. This webinar will address monitoring the conditions that affect crop water availability, and provide tools and strategies to identify when irrigation might be needed, and how much should be applied.

Dr. Steven J. Thomson has conducted agricultural research for 33 years, with a career beginning at the Coastal Plain Experiment Station in Tifton, GA, USA.  There, he developed the first calibration curves for a popular granular matrix soil water sensor that became a referenced option for programming a commercial micro-logger. As faculty member at Virginia Tech, he received the Alpha Epsilon award for outstanding research and extension in 1995 and was a Top Ten finalist out of 280 engineering faculty for a W.E. Wine award for excellence in teaching. He is presently Lead Scientist on a research project involving spray application and efficacy, spray drift mitigation, variable rate aerial application of crop protection materials, and remote sensing for detection of plant stress. Dr Thomson is also a scientist on an irrigation project, where his research involves calibration and use of user-oriented evaporation pans, sensor-based irrigation scheduling, and thermal imaging for crop stress management. He has over 100 research publications, has received three Superior Manuscript awards, and has been invited to speak at many forums including Keynotes for the First Asian Conference on Precision Agriculture in Toyohashi, Japan and Sino-US Conference on Intelligent Equipment for Precision Agriculture and & Remote Sensing. He is currently a Division Editor for the research journal Transactions of the ASABE.

Dr. Daniel (Ken) Fisher serves as a Research Agricultural Engineer with the USDA Agricultural Research Service's Crop Production Systems Research Unit in Stoneville, Mississippi.  He received a BS degree in Mechanical Engineering from the University of Central Florida, an MS in Agricultural and Irrigation Engineering from Utah State University, and a PhD in Biosystems and Agricultural Engineering from Oklahoma State University.  He has worked in the private sector in the aerospace, electromechanical equipment, and agricultural instrumentation industries, and in university and government research institutions.
Dr. Fisher is part of an interdisciplinary team responsible for development and evaluation of technologies for agricultural chemical application, irrigation water management, and improved crop production systems.  He is part of a research project entitled “Development of Water Management Technologies for the Mid-South,” where his role is to develop and implement novel sensor-based systems for monitoring water resources and detecting crop stress, and to apply improved techniques to aid in irrigation scheduling and water management.  His interests include evapotranspiration estimation, irrigation scheduling, microcontroller and sensor circuit design and development, and open-source hardware and software.

CEUs: Full participants in the webinar, who are certified, will automatically receive CEUs. CCAs and CPAgs will receive 1.0 CEU in Soil and Water Management. CPSS and CPSC certificants will receive 1.0 CEU in Professional Meetings.  Viewing of the live webinar will be automatically added to your record as board approved CEUs.  Viewing of the recording will need to be self reported on or



Check out for soils related online course opportunities or for agronomy related online course opportunities.

Please contact Nate Ehresman ( with any questions.


We use GoTo Meeting software to provide class instruction.  The system requirements to use GoToMeeting can be found at

As the information to access the webinar will be sent to you, you must have an email on file with us. If you are unsure if we have an email for you, check your profile at or - note that a login with email is required to access this information. The seminar will be conducted online. However, participants may dial-in via their phone line (at their cost - the dial-in number will not be an 800 number). All participants will need internet access and your computer must be equipped with a soundcard and internal or external speakers. For those attendees wishing to access the webinar via phone only, you will still need to login prior to the webinar to access the dial-in number.

If you have any questions, please contact Nate Ehresman, e-mail: or phone: 608-268-4972.

Suggestions for online educational topics?  Please let us know what they are by contacting Luther Smith, Director of Certification and Licensing Programs.

View other education opportunities via our Societies Calendar.

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