SSSAJ Journal of Natural Resources and Life Sciences Education
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Published in Soil Sci Soc Am J 43:808-810 (1979)
© 1979 Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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A Compact, Low-Cost Circuit for Reading Four-Electrode Salinity Sensors1

R. S. Austin and J. D. Rhoades2

ABSTRACT

An electrical circuit is described that uses a minimal number of components to measure soil electrical conductivity using the four-electrode salinity sensor. The portable circuit is compact, inexpensive, reliable, and easy to construct.

NOTES

1 Contribution from the U. S. Salinity Laboratory, Riverside, CA 92501.

2 Electronics Technician and Supervisory Soil Scientist, respectively.

Received for publication August 21, 1978. Accepted for publication April 6, 1979.






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Copyright © 1979 by the Soil Science Society of America.