How to calculate matric potential using the mercury on the koalin/sand box experiment

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Lucas Braos

I never used such equipament but I belive it already calculated the matric pontential and give the results in units of pressure (hPa, kPa, bar, etc). Did not understand the question. Sorry!

Guido Bongi

You may take infos from pp 690-5 of a book about suction tables assembly http://hopmans.lawr.ucdavis.edu/papers-ppt-zip/Chapt3-3-1&21.pdf

Cliff Hignett

Are you asking how to convert a mercury head difference to other pressure units? Multiply the mercury head (in cm) by 13.6 to get pressure head in cm of water. OR multiply by 1.36 to get pressure in kPa. 13.6 is the density of mercury in g/cc