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    Adsorption and desorption of paraquat in acid tropical soils

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    S78ArtJuoAdsorptionInthomNodev.PDF (2.074Mb)
    Date
    1978
    Author
    Juo, A.S.R.
    Oginni, O.O.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Adsorption of paraquat (1:1′-dimethyl 4:4′-bipyridylium chloride) by six common soil types from southern Nigeria was studied. Adsorption data conformed with linear Langmuir isotherm. Adsorption maximum (b) calculated from the Langmuir equation ranged from 1,200 to 7,500 µg/g of soil. The iron oxide-rich soil derived from basalts adsorbed the highest amount, while the strongly acidic soils derived from sedimentary rocks adsorbed the least amount of paraquat. Desorption data indicated that a substantial portion (40 to 70%) of the adsorbed paraquat could not be recovered by 12 successive extractions with dilute CaCl2 solution.
    https://dx.doi.org/10.2134/jeq1978.00472425000700010002x
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/1831
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.2134/jeq1978.00472425000700010002x
    IITA Subjects
    Soil Fertility; Soil Information; Soil Surveys And Mapping
    Agrovoc Terms
    Vltisols; Alfisols; Langmuir Adsorption Maximum; Desorption; Soil
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    Journal of Environmental Quality
    Collections
    • Journal and Journal Articles4835
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