�From:�	Jochen Eberhard ("Jochen.Eberhard")
�To:�		sowacs@aqua.ccwr.ac.za
�Date:�	Tuesday, July 23, 1996  1:34 pm
�Subject:�	SOWACS: Thanks for help with tensiometers

Hi,
thanks a lot for all the help some of you gave me with mytensiometers. So I 
could eliminate the technique as the guilty part. As it now seemsto me, I am 
the one to blame, because it is just the lack of water. :-)) 
I doppled the application rate and.. surprise :-) surprise.. thetensiometer 
readings start coming down, very slow but that is the way I likeit. 
As I often say to my colleques, the technique usually works well,most of the 
problems are caused by the people working with it (wronginterpetation, wrong 
application rates, wrong irrigation scheduling, ect.)
While thinking about my own problems another question came up inmy mind. With 
high transpiration rates the soil moisture is not the same as withlow 
transpiration rates although the tensiometers show the same soilmoisture 
tension. Is this correct? Than there sould be some kind of cropcoefficient to 
get some kind of plant moisture status.  

This is just some kind of brainstorming I am doing, not a highquality 
scientific thinking.
Any comments are welcome.

Jochen Eberhard, Germany
email: Jochen.Eberhard@t-online.de