University of California

Soil type affects accuracy of dielectric moisture sensors


Blaine R. Hanson
Douglas Peters

Authors Affiliations

B.R. Hanson is Extension Irrigation and Drainage Specialist; D. Peters is Staff Research Associate, Department of Land, Air and Water Resources, UC Davis.

Publication Information

Hilgardia 54(3):43-47. DOI:10.3733/ca.v054n03p43. May 2000.

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Several types of dielectric soil moisture sensors were evaluated at various locations in California. The TRASE and ThetaProbe devices were reasonably accurate over a range of soil textures. In silt loam and silty clay soil types, the Enviroscan readings were inaccurate. The Aquaterr meter, which provides a qualitative measurement of soil moisture content, responded to changes in soil moisture content for several different soils, but little response occurred in one sandy soil.


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Hanson B, Peters D. 2000. Soil type affects accuracy of dielectric moisture sensors. Hilgardia 54(3):43-47. DOI:10.3733/ca.v054n03p43
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