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Germination, Growth, and Nodulation of Sesbania rostrata Grown in Pb/Zn Mine Tailings

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Sesbania rostrata

in pure and amended Pb/Zn tailings. About 90% of seeds of S. rostrata germinated in pure Pb/Zn tailings, which contained high concentrations of Pb, Zn, Cu, and Cd. Although seedling growth suffered from the adverse environment of Pb/Zn tailings, they became established on tailings stands, in the greenhouse, as well as on the actual tailings dam, and completed their life cycle in 4 months. Dry matter production and nitrogen accumulation was 3200 kg/ha and 69.4 kg/ha, respectively in the actual tailings dam. Applying inorganic fertilizer to Pb/Zn tailings led to no obvious improvement in growth and nodulation of S. rostrata, while tailings amended by river sediment or domestic refuse rich in organic matter improved the growth and nodulation of the species. Azorhizobium caulinodans survived and formed N-fixing stem and root nodules in S. rostrata grown in pure Pb/Zn tailings with a nodule biomass exceeding 300 mg fresh matter per plant.

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Authors and Affiliations

  1. School of Life Science Zhongshan University Guangzhou, China , , , , , , CN

    Z. Y. Yang, J. G. Yuan, G. R. Xin & H. T. Chang

  2. Centre for Waste Recycling and Environmental Biotechnology Department of Biology Hong Kong Baptist University Kowloon Tong, Hong Kong , , , , , , HK

    M. H. Wong

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  1. Z. Y. Yang
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  2. J. G. Yuan
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  3. G. R. Xin
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  4. H. T. Chang
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  5. M. H. Wong
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Yang, Z., Yuan, J., Xin, G. et al. Germination, Growth, and Nodulation of Sesbania rostrata Grown in Pb/Zn Mine Tailings . Environmental Management 21 , 617 –622 (1997). https://doi.org/10.1007/s002679900054

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  • DOI: https://doi.org/10.1007/s002679900054

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