Hi all, is there a way to link the EC of a saturated soil paste (not an extract, so ECp) prepared at a soil:water ratio of 1:1 and the salinity of that sample?

I already found the procedure of Rhoades et al. to link ECp to ECe and then use TDS = 640.ECe but the problem there is that I do not have data on the saturation percentage (SP) of the sample, as we did not measure the volume.

(Samples was prepared as: 50 grams of soil + 50 ml distilled water, shaken and left to rest, HannaEC probe measured the EC in dS/m)

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