“…Notably, EWSwillows exhibit twice the concentration of P, Ca, Na, and Fe, while Mg and K levels are lower. This variation is even more pronounced when compared to the elemental concentrations in wastewater-irrigated SRCW-willows studied by Conti et al [77] and Hänel et al [78]. Our results emphasize not just the benefit of wastewater irrigation but also highlight the crucial role of engineered wetland systems in maximizing nutrient uptake by willows.…”