Effect of adding solid sewage waste (Sludge) on Eruca sativa Mil

Abstract

The main objective of this study was to effect of sludge from the sewage treatment station in the Misurata region on Eruca sativa compared to the chemical fertilizer NPK. The study carried inside the greenhouse of the Faculty of Science, University of Misurata during the 2016-2017, three treatments 15, 30 and 45 tons / h of sludge.

        The results showed that the sludge produced from the treatment station in Misurata with a pH lean towards to be a little acidic (6.86). In addition, all heavy metals are within the permissible limits compared to the Syrian and German standard specifications for sludge used in agriculture.

The Morphological study showed that there were no significant differences in all treatments compared to the control, except for leaf area with different concentrations of sludge, but significant in dry matter percentage and water content at a concentration of 15 tons/ha of sludge. However, the sugars, proteins and proline showed no significant differences in all concentrations but the amino acids showed significant differences in all concentrations.

      The results showed that, all the studied mineral elements (sodium, potassium, calcium, Magnesium, iron, copper, zinc, chromium, lead, cadmium and arsenic) in the permissible limits in the tissues of the studied plants.