XieO'HalloranMackenzieEtAl1993

Référence

Xie, R.J., O'Halloran, I.P., Mackenzie, A.F. and Fyles, J.W. (1993) Phosphate sorption and desorption as affected by addition sequences of ammonium lignosulphonate and diammonium phosphate in a clay soil. Canadian Journal of Soil Science, 73(2):275-285.

Résumé

A study was carried out to evaluate the effect of ammonium lignosulphonate (NH4LS) and diammonium phosphate (DAP) addition on retention and desorption of P in four different treatments. Ca dissolution and formation of Ca-P compounds accounted for part of the increases in P retention found, especially at high rates of P additions. Additions of NH4LS reduced P retention, except when DAP alone was added initially to the soil. This suggests that lignosulphonate competed with phosphate ions for adsorption sites when NH4LS was added either before or simultaneously with DAP. Phosphate desorption increased with increase P retention and was greater with simultaneous additions of NH4LS and DAP. In summary, NH4LS improved the efficiency of P fertilizers through increasing P solubility. -from Authors

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@ARTICLE { XieO'HalloranMackenzieEtAl1993,
    AUTHOR = { Xie, R.J. and O'Halloran, I.P. and Mackenzie, A.F. and Fyles, J.W. },
    TITLE = { Phosphate sorption and desorption as affected by addition sequences of ammonium lignosulphonate and diammonium phosphate in a clay soil },
    JOURNAL = { Canadian Journal of Soil Science },
    YEAR = { 1993 },
    VOLUME = { 73 },
    PAGES = { 275-285 },
    NUMBER = { 2 },
    NOTE = { 00084271 (ISSN) Cited By (since 1996): 5 Export Date: 26 April 2007 Source: Scopus Language of Original Document: English },
    ABSTRACT = { A study was carried out to evaluate the effect of ammonium lignosulphonate (NH4LS) and diammonium phosphate (DAP) addition on retention and desorption of P in four different treatments. Ca dissolution and formation of Ca-P compounds accounted for part of the increases in P retention found, especially at high rates of P additions. Additions of NH4LS reduced P retention, except when DAP alone was added initially to the soil. This suggests that lignosulphonate competed with phosphate ions for adsorption sites when NH4LS was added either before or simultaneously with DAP. Phosphate desorption increased with increase P retention and was greater with simultaneous additions of NH4LS and DAP. In summary, NH4LS improved the efficiency of P fertilizers through increasing P solubility. -from Authors },
    KEYWORDS = { ammonium lignosulphonate diammonium phosphate fertiliser lignosulphonate phosphate },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

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