. Alkaline industrial by-product effects on plant growth in acidic-contaminated soil systems. Soil pollution; Mineral industries; Tailings (Metallurgy); Lime; Plants. ? ? ? - ? - ? - > ^ ' Jl»n'~^ '?? ?'??*"&'? A" -? '?--^??'.'.: ::^-:v,: ::?:?'-- - - *0> ASSUMED BOUNDARY OF NORMAL SURFACE CONDITIONS -I. 10 12 14 PH Figure 4. Stable fields of selenium (Brown and Associates 1980, Sims et al. 1986). Reactions [3] through [7], would result in a soil pH in the range of to As illustrated in Figure 6, the zinc in the soil solution at pH
. Alkaline industrial by-product effects on plant growth in acidic-contaminated soil systems. Soil pollution; Mineral industries; Tailings (Metallurgy); Lime; Plants. ? ? ? - ? - ? - > ^ ' Jl»n'~^ '?? ?'??*"&'? A" -? '?--^??'.'.: ::^-:v,: ::?:?'-- - - *0> ASSUMED BOUNDARY OF NORMAL SURFACE CONDITIONS -I. 10 12 14 PH Figure 4. Stable fields of selenium (Brown and Associates 1980, Sims et al. 1986). Reactions [3] through [7], would result in a soil pH in the range of to As illustrated in Figure 6, the zinc in the soil solution at pH ( mg/1) is predicted to have a lower concentration in an amended soil system, for example pH , where the Zn concentration in solution would be mg/1. The soil solution concentration of Zn that can cause a phytotoxic response is uncertain. Total Zn concentrations in soil that produce phytotoxic response are usually in the 250 to 650 mg/kg range (Munshower 1994). Kabata-Pendias and Pendias (1984) reviewed results from several investigations and found total soil Zn concentrations of 70 - 400 mg/kg caused phytotoxicity. Kiln dust application rates in the range of 2 - 10 % (dry weight basis) will increase the total Zn concentration in the tailings (used in this investigation, Table 6) approximately 1 % C:\Project FilesVMDEQ - Alkaline Byproducts Plant Growth\2002\Reports\Final Report 31. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Dollhopf, D. J; Mehlenbacher, Joel Thomas. Bozeman, Mont. Reclamation Research Unit, Department of Land Resources and Environmental Sciences, Montana State University
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Keywords: ., booksubjectlime, booksubjectmineralindustries, booksubjectplants
