(2019-10) Tesón, Natalia; Larocca, Federico; Millán, Guillermo; Dalla Tea, Fernando
The reuse of municipal treated water for irrigation is an alternative to the discharge on surface
waters that generate a sustained addition of nutrient and water for the trees. The objectives of this
study are to evaluate reduction of the addition of nitrogen and phosphorus to the Salto Grande
reservoir and to evaluate the effect on the growth of a Eucalyptus grandis W. Hill ex Maiden
plantation. On the first 36 months, the total of wastewater reuse was 144.320 m3 and the increase
of growth on irrigated plots was 35 %. Some changes in EC and SAR were detected, but they
didn’t affect the trees. These preliminary results indicate that the reuse of wastewater for
irrigation is an interesting alternative to the direct discharge.
