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Dynamic Variable Rate Irrigation – A Tool for Greatly Improving Water Use Efficiency

Published online by Cambridge University Press:  01 June 2017

V. Liakos ,
W. Porter ,
X. Liang ,
M. A. Tucker ,
A. McLendon  and
G. Vellidis
V. Liakos*
Affiliation:
Department of Crop and Soil Sciences, University of Georgia, Tifton, GA, USA
W. Porter
Affiliation:
Department of Crop and Soil Sciences, University of Georgia, Tifton, GA, USA
X. Liang
Affiliation:
Department of Plant, Soil and Entomological Sciences, University of Idaho, Aberdeen, ID, USA
M. A. Tucker
Affiliation:
Department of Crop and Soil Sciences, University of Georgia, Tifton, GA, USA
A. McLendon
Affiliation:
McLendon Acres, Leesburg, GA, USA
G. Vellidis
Affiliation:
Department of Crop and Soil Sciences, University of Georgia, Tifton, GA, USA
*
†E-mail: vliakos@uga.edu
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Abstract

This paper will present a dynamic Variable Rate Irrigation System developed by the University of Georgia. The system consists of the EZZone management zone delineation tool, the UGA Smart Sensor Array (UGA SSA) and an irrigation scheduling decision support tool. An experiment was conducted in 2015 and 2016 in two different peanut fields to evaluate the performance of using the UGA SSA to dynamically schedule Variable Rate Irrigation (VRI). For comparison reasons strips were designed within the fields. These strips were irrigated according to either UGA SSA or Irrigator Pro recommendations. The results showed that Irrigator Pro is a conservative irrigation method which results in high yields. On the other hand the UGA SSA recommendations worked very well with the VRI system and in both years it recommended an average of 25% less irrigation water than the Irrigator Pro.

Keywords

prescriptionpeanutswater use efficiencycenter pivotdecision support system
Type
Precision Irrigation
Information
Advances in Animal Biosciences , Volume 8 , Special Issue 2: Papers presented at the 11th European Conference on Precision Agriculture (ECPA 2017), John McIntyre Centre, Edinburgh, UK, July 16–20 2017 , July 2017 , pp. 557 - 563
Copyright
© The Animal Consortium 2017 

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