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Abstract

 

This article in SSSAJ

  1. Vol. 44 No. 6, p. 1216-1221
     
    Received: Dec 15, 1979
    Accepted: July 9, 1980


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doi:10.2136/sssaj1980.03615995004400060017x

Determination of Soil Solution Electrical Conductivity from Bulk Soil Electrical Conductivity Measurements by the Four-Electrode Method1

  1. A. Nadler and
  2. H. Frenkel2

Abstract

Abstract

Soil electrical conductivity (ECa) by the four electrode method was studied in the laboratory as a function of soil water electrical conductivity (ECw) and water content in six soil types. A linear relationship between ECa and ECw was valid only at salinities > 4 mmho/cm. At very low salinity levels the contribution of the surface conductance was not constant and had a higher contribution than ECw to measured ECa. A method for calculating the partial contribution of surface conductance to ECa as a function of ECw and clay content is applied including a correction for dependence on the soil water content.

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