Research highlights
▶ Our data showed that irrigation with TWW caused a limited vegetative growth retardation but a highly significant increase of the yield in both years. TWW worked as fertirrigation supplying N, P and K in large amounts. Finally, the application of TWW caused an increase of Mn and Zn in soil and leaves but within the usual range detected in plants.
Keywords
Olea europaea L.; Treated wastewater; Irrigation; Shoot growth; Salts; Heavy metals