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In <199904081927.TAA48416@aqua.ccwr.ac.za>, on 04/08/99 at 07:27 PM, owner-sowacs@aqua.ccwr.ac.za said: Martin Parkes said (among other things) >Can anyone help get the IAEA report posted on our discussion network >along with Martin Shmitz's results? The IAEA report will include the recommendations and five papers, some lengthy, and is in the hands of an editor at present. I would expect it to be available in printed form later this year, although my understanding is that it won't be reprinted when copies run out. One of the recommendations in the report is that IAEA create a WWW site containing information relating to soil water content assessment including the report. So, I would hope to see this occur also some time this year. Although it is not the official IAEA version, my paper for the report is available as a draft Adobe PDF file at http://www.cprl.ars.usda.gov/programs/ Martin's comments about tensiometers, hysteresis, and the different kinds of information that tensiometers and water content sensors can provide were on the spot. Because of hysteresis, and the flatness of the scanning curves where they intersect the main drying and wetting curves in a plot of tension vs. water content, quite wide variations in plant available water may occur for a given field-measured tension. -------- Steve Evett srevett@ag.gov http://www.cprl.ars.usda.gov/ USDA-ARS, P.O. Drawer 10, 2300 Experiment Station Road Bushland, Texas 79012. Tel:806.356.5775 FAX:806.356.5750 ---------------------------------------------------