Impact of polluted underground water from seepage of industrial effluents on soil properties and growth of Acacia senegal

study was undertaken to investigate the impact of ground water polluted through seepage of textile industrial effluents (CWW) on chemical and microbial properties of the industrial effluents-contaminated soil (CS) and to monitor the growth of Acacia senegal grown in this soil. Use of contaminated well water significantly increased the soil BC and pH, and there was reduction in soil organic matter content, available Nand P. Activities of dehydrogenase, alkaline and acid phosphatses in soil also were significantly reduced. High salt build-up in soil resulted in significant reduction in population of N fixing bacteria, nitrifying bacteria and AM-fungal root infection. Acacia senegal seedlings could not survive with CWW, even with the treatment of soils with FYM and gypsum. However, A. senegal plants could grow in soil irrigated with normal water. Application of FYM and gypsum in the contaminated soils significantly improved the mean daily germination, collar diameter, plant dry weight and chlorophyll content in seedings. Soil application of FYM and gypsum significantly reduced EC and pH of the soil and enhanced the organic C, available Nand P, dehydrogenase, alkaline and acid phosphaatases, N fixing bacteria, nitrifying bacteria and root infection by VAM fungi.