[Valorisation of the wastewaters by the irrigation of vegetable cultures]

analyse de l'eau belgique belgium bicarbonate bicarbonates bicarbonatos calidad del agua electrical properties exigence des plantes fitotoxicidad heavy metals hortalizas (plantas) metales pesados necesidades de las plantas pathogens ph phytotoxicity plant requirements riego con aguas residuales vegetable crops wastewater irrigation water analysis water quality