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This article in SSSAJ

  1. Vol. 43 No. 4, p. 808-810
    Received: Aug 21, 1978
    Accepted: Apr 6, 1979

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A Compact, Low-Cost Circuit for Reading Four-Electrode Salinity Sensors1

  1. R. S. Austin and
  2. J. D. Rhoades2



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.

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