Effect of aging biosolids with soils of contrasting pH on subsequent concentrations of Cu and Zn in pore water and on their plant uptake

Murtaza, Ghulam, Haynes, Richard John, Kim, Kwon-Rae, Zia, M. H., Naidu, Ravindra and Belyaeva, Oxana N. (2012) Effect of aging biosolids with soils of contrasting pH on subsequent concentrations of Cu and Zn in pore water and on their plant uptake. Environmental Science and Pollution Research, 19 3: 636-645. doi:10.1007/s11356-011-0592-3


Author Murtaza, Ghulam
Haynes, Richard John
Kim, Kwon-Rae
Zia, M. H.
Naidu, Ravindra
Belyaeva, Oxana N.
Title Effect of aging biosolids with soils of contrasting pH on subsequent concentrations of Cu and Zn in pore water and on their plant uptake
Journal name Environmental Science and Pollution Research   Check publisher's open access policy
ISSN 0944-1344
1614-7499
Publication date 2012-03
Year available 2011
Sub-type Article (original research)
DOI 10.1007/s11356-011-0592-3
Volume 19
Issue 3
Start page 636
End page 645
Total pages 10
Place of publication Heidelberg, Germany
Publisher Springer
Collection year 2013
Language eng
Formatted abstract
Purpose The study examines if a short period of reaction after addition of biosolids to soils can reduce the solubility and potential phytotoxicity of biosolid-borne Zn and Cu.
Methods The effects of period of aging (zero, 60, and 120 days) of biosolids (applied at 0, 10, 20, and 30 g kg−1) with an acid, neutral, or alkaline soil on pH and concentrations of Zn, Cu, and dissolved organic C in solution over a 60-day growth period of spinach were investigated using Rhizon pore water samplers.
Results In the acid and neutral soils, increasing aging period markedly reduced the concentrations of Zn and Cu in solution and there were concomitant increases in solution pH. The effect was much less pronounced in the alkaline soil. Soluble Zn and Cu concentrations were generally positively correlated with dissolved organic C concentrations, negatively correlated with pH in the alkaline and neutral soils but positively correlated with pH in the acid soil. Spinach yields were lower in the acid than neutral and alkaline soils and tended to increase with increasing rates of biosolids in all three soils. The concentrations of tissue Zn and Cu were notably high in shoots of plants grown in the acid soil. For all biosolid-amended soils, the concentrations of tissue Cu were lower in plants grown after 60 days rather than no aging.
Conclusions Following biosolids applications to soils, an aging period of only a few months is likely to lower the solubility, and potential phytotoxicity, of biosolid-borne Zn and Cu particularly in acid and neutral soils.
Keyword Biosolids
Zn
Cu
Dissolved organic C
pH
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online: 4 September 2011

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Agriculture and Food Sciences
Official 2013 Collection
 
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