The results showed that, the average soil water tension at 15 cm depth ranged from 10 -20 centibar
(cb) in FC treatment, 10-40 cb in 85% FC and 30-60 cb in 70% FC treatments respectively.
The adjustable WEM-II has an 11-position dial with discrete set points to maintain soil moisture from field capacity to 120 centibars
. The dial also has an override/off position for switching to manual operation.
The water potential was maintained at -10, -20, -30 or -40 kPa (or centibars
), minimizing oscillations.