Abstract
ABSTRACT MANY areas in the San Joaquin Valley have saline high water tables. Irrigation scheduling in these areas requires consideration of upward flow of groundwater into the root zone and of salinity levels in the root zone. The leaf water potential, as measured with a pressure chamber, appears to be a rehable and practical scheduling index which will allow for consideration of both upward flow and salinity. Pressure chamber measurements used to schedule irrigation for a grower in a saline high water table area resulted in an increase in the interval between irrigations. Day-to-day variability in climate appeared to have little impact on this method of scheduling irrigations.
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