Scheduling irrigation using an approach based on the van Genuchten model

Scheduling irrigation using an approach based on the van Genuchten model •We developed a method which uses soil water tension data and the van Genuchten model to provide irrigation scheduling recommendations.•The strength of the method is that it can use data readily available from USDA-NRCS soil surveys to construct soil water retention curves and calculate the volumetric water content and soil water tension of a soil at field capacity.•The method was validated by comparing its results to other published methods and with continuous soil water tension data with multiple wetting and drying cycles from six fields in southern Georgia, USA.•The method used about two thirds of the irrigation water and produced about the same yields as a commonly used yes/no irrigation decision tool. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Agricultural Water Management Elsevier

Scheduling irrigation using an approach based on the van Genuchten model

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier Ltd
ISSN
0378-3774
D.O.I.
10.1016/j.agwat.2016.05.030
Publisher site
See Article on Publisher Site

Abstract

•We developed a method which uses soil water tension data and the van Genuchten model to provide irrigation scheduling recommendations.•The strength of the method is that it can use data readily available from USDA-NRCS soil surveys to construct soil water retention curves and calculate the volumetric water content and soil water tension of a soil at field capacity.•The method was validated by comparing its results to other published methods and with continuous soil water tension data with multiple wetting and drying cycles from six fields in southern Georgia, USA.•The method used about two thirds of the irrigation water and produced about the same yields as a commonly used yes/no irrigation decision tool.

Journal

Agricultural Water ManagementElsevier

Published: Oct 1, 2016

References

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