van den Hoek and his advisory team are evaluating the performance of four corn and four forage sorghum varieties under deficit irrigation using the center pivot irrigation system as the means for imposing roughly 100%, 70%, and 40% amounts of full ET (evapotranspiration) following the application of full ET during the early part of the season. The deficit treatments were recently initiated and van den Hoek's calculations project roughly 25 inches of water being applied to the 100% system, about 20 inches going to the 70% system, and 17 inches to the 40% treatment by the end of the 2015 season. Varietal responses of the corn and sorghum crops are being evaluated in terms of growth and development, yield, and forage quality.
The team will host a public field education event later in the 2015 summer.
Additional information is available by contacting van den Hoek at gvandenhoek@ucdavis.edu, or Mitchell at jpmitchell@ucdavis.edu