Growth of selected plant species in biosolids-amended mine tailings

摘要: Abstract Biosolids stockpiles from sewage treatment plants are a valuable source of organic matter which could be utilized to improve the nutritional status and physical properties Au mine tailings support growth vegetation planted in tailings. However, biosolids often contain elevated concentrations heavy metals including Hg while would usually residual Au. Therefore, it beneficial select capable both tolerating phytoextracting and/or This paper reports on glasshouse-based screening study examined plant species known for their ability phytoextract can grow substrates consisting biosolids, tailings, or different combinations both. The germination establishment over 8–12 weeks were monitored Brassica juncea (Indian mustard), Daucus carota (carrot), Lupinus albus (white lupin), Beta vulgaris (sugar beet), Solanum tuberosum (potato), Manihot esculenta (cassava). Each exhibited differential responses terms germination, seedling quality, leaf area, specific root shoot biomass, percentage dry partitioning roots. Both Indian mustard carrot grew successfully biosolids-mine substrate white lupin, sugar beet, cassava, potato failed most combinations. suitable combination was determined 75% – 25% wherein abovementioned parameters did not differ significantly those grown control potting mix.