Use of pyrite in the reclamation of degraded calcareous soils

A field experiment was conducted to investigate the effect of pyrite in reclamation of degraded calcareous soils. In this paper, the behaviour in soil of Cu, Zn, Fe and Pb was studied, 3a after application of 4 rates of pyrite (0, 3, 6 and 9 t ha −1) and of 3 rates of superphosphate (0, 76.5 and 153...

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Bibliographic Details
Published in:Applied geochemistry 1996-01, Vol.11 (1), p.347-349
Main Authors: Blanco, M.A. Castelo, Balsa, M.E., Gusmão, M.R., Vieira e Silva, J.M., Fernandes, M.L., Sequeira, E.M.
Format: Article
Language:English
Subjects:
Copper
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Environmental impact
Exact sciences and technology
Heavy metals
Iron
Land reclamation
Lead
Phosphates
Pollution, environment geology
Q1
Soils
Surficial geology
Zinc
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Summary:A field experiment was conducted to investigate the effect of pyrite in reclamation of degraded calcareous soils. In this paper, the behaviour in soil of Cu, Zn, Fe and Pb was studied, 3a after application of 4 rates of pyrite (0, 3, 6 and 9 t ha −1) and of 3 rates of superphosphate (0, 76.5 and 153 kg P ha −1). Total Cu, Zn, Fe and Pb and DTPA extractable Cu, Zn, Fe increased linearly with the amount of applied pyrite. After 3a, most of the Cu, Zn, Fe and Pb remained attached to the pyrite. In the treatment with 9 t ha −1 of pyrite only Zn occurred at concentrations which might cause environmental problems.
ISSN:0883-2927
1872-9134
DOI:10.1016/0883-2927(95)00103-4