Electrical conductivity of the leachate in both types of soils decreased to 33% with respect to the initial value soon after the beginning of the test, and reached 9% at the end of the experi- mentation without significant differences among the treatments. The decreasing trend of conductivity can be ascribed to the soil retention of the salts dissolved in OMW, coupled with the effect of dilution caused by the large volumes of water (both irrigation and rain) that flowed through the lysimeters