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The short answer to your question is "Yes". In the section preceding page 10 of my paper "applicat.pdf" downloadable from: <http://www.icfrnet.unp.ac.za/~metele/sowacs/irristat.html> and (incorrectly) designated as the short paper, the physics of osmotic tensiometers is discussed, and I note that a stable osmotic tensiometer, (even with a useful range from 0 to -15 bars), of the Peck and Rabbidge type (see references 26 and 27 on page 18 of the same paper) can be easily constructed with an acrylamide gel. After you have studied that material, if you have any further questions, I'll be glad to try to help. Len Ornstein >Your posting on SOWACS was very interesting. > >Is there a function to connect the wall counter-pressure of the swelling >Gel to >the surrounding Soil Water Potential? If would, there could be a >possibility to >use it a soil moisture sensor. > >M. Meron >========================================================================= >MIGAL Galilee Technology Center Crop Ecology Laboratory >Kiryat Shmona PO Box 90 000 Rosh Pina 12 100 ISRAEL >Phone +972-6-953559 Fax: +972-6-944980 Email: MERON@migal.co.il >=========================================================================