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Greenhouse experiments were conducted to examine the impact of expanded clay (Turface) or porous ceramic (Isolite) amendments on germination, biomass production, plant Zn concentration, and Zn accumulation by Festuca arundinacea grown in mine tailings. Because previous studies have demonstrated that fertilization is essential for plant growth in these tailings, manure was also added to the tailings...
In soils containing elevated levels of zinc, plant growth may be impaired because of Zn interference with P up-take by plants and because of detrimental effects of Zn toxicity itself. Because mycorrhizal fungi are known to improve uptake of plant P, the beneficial effects of mycorrhizal symbiosis on Zn tolerance of Andropogon gerardiiVitm. were assessed in soil amended with various levels of Zn and...