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Abstract

 

This article in SSSAJ

  1. Vol. 33 No. 5, p. 787-789
     
    Received: Feb 7, 1969
    Published: Sept, 1969


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doi:10.2136/sssaj1969.03615995003300050044x

Conductivity Instrumentation for In Situ Measurement of Soil Salinity1

  1. C. G. Enfield and
  2. D. D. Evans2

Abstract

Abstract

A transducer has been developed which is capable of assessing, in situ, the electrical conductivity of soil water. The transducer is constructed of porous glass with platinum electrodes and operates over the entire field moisture range. The transducer is accurate to within 10% when measured with an associated soild state meter in a conductivity range of 1–20 millimhos/cm @ 25C and a temperature range of 5–45C. Typically, the time required to achieve 63% of equilibrium response, in aqueous solutions, is less than 2 hours.

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