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This investigation was conducted to study the impacts of using sewage sludge at different concentrations (0, 10, 25, 50, 75%) in amendment of desert reclaimed soil properties and some physiological aspects in wheat and jews mallow plants. Generally adding sewage sludge to desert soil improved the soil texture, raised the organic matter contents, water holding capacity and lowered pH value. The contents of NPK gradually increased as the ratio of sewage sludge increased. The fresh and dry weights and biosyntheses of pigment contents of the variously treated test plants were increased by increasing the sewage sludge levels in the soil. Also, total carbohydrate and protein contents of sewage sludge-treated test plants were positively affected. With respect to the proline content and total free amino acids, in most cases, it decreased significantly, expect at 75% sewage sludge, which was higher than that of other concentrations. Also, the accumulation of metal was generally higher, especially in the root than that in the shoot system in the test plant tissues

Study of potential impacts of using sewage sludge in the amendment of desert reclaimed soil on wheat and jews mallow plants