Al-KananiMacKenzieFylesEtAl1994

Référence

Al-Kanani, T., MacKenzie, A.F., Fyles, J.W., Ghazala, S. and O'Halloran, I.P. (1994) Ammonia volatilization from urea amended with lignosulfonate and phosphoroamide. Soil Science Society of America Journal, 58(1):244-248.

Résumé

Concern about losses of fertilizer N and pollution of the environment has stimulated research to find compounds that will reduce these problems by effectively inhibiting urease activity and nitrification. Laboratory studies were carried out to evaluate the effects of ammonium lignosulfonate (LS), thiophosphoric triamide (NBPT), and phenylphosphorodiamide (PPD) on NH3 loss from urea fertilizer. We examined NH3 losses from surface-applied area and from banded area (2 cm below the soil surface) in samples of Ste. Rosalie clay soil (fine, mixed, nonacid, mesic Typic Humaquept) exposed to an initial water pressure of -0.01 MPa. Formulations of solution, physical dry blend, and tablets were used. Measurements of NH3 volatilization were carried out using an air train system. Ammonia loss from surface-applied unamended urea ranged from 16 to 21% of urea-N applied. Amending urea with LS induced between 46 and 85% reduction in NH3 losses compared with the unamended urea. For tablet and physical dry blend formulations, banding reduced NH3 loss compared with the surface application. There were no significant differences in NH3 losses between surface-applied and banded treatments of solid fertilizer. Comparison of the effects of LS, NBPT, and PPD on NH3 volatilization showed that both NBPT and PPD were more effective in reducing NH3 loss than LS, but no significant differences between NBPT and PPD were found.

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@ARTICLE { Al-KananiMacKenzieFylesEtAl1994,
    AUTHOR = { Al-Kanani, T. and MacKenzie, A.F. and Fyles, J.W. and Ghazala, S. and O'Halloran, I.P. },
    TITLE = { Ammonia volatilization from urea amended with lignosulfonate and phosphoroamide },
    JOURNAL = { Soil Science Society of America Journal },
    YEAR = { 1994 },
    VOLUME = { 58 },
    PAGES = { 244-248 },
    NUMBER = { 1 },
    NOTE = { 03615995 (ISSN) Cited By (since 1996): 7 Export Date: 26 April 2007 Source: Scopus CODEN: SSSJD Language of Original Document: English Correspondence Address: Al-Kanani, T.; Memorial Univ of Newfoundland },
    ABSTRACT = { Concern about losses of fertilizer N and pollution of the environment has stimulated research to find compounds that will reduce these problems by effectively inhibiting urease activity and nitrification. Laboratory studies were carried out to evaluate the effects of ammonium lignosulfonate (LS), thiophosphoric triamide (NBPT), and phenylphosphorodiamide (PPD) on NH3 loss from urea fertilizer. We examined NH3 losses from surface-applied area and from banded area (2 cm below the soil surface) in samples of Ste. Rosalie clay soil (fine, mixed, nonacid, mesic Typic Humaquept) exposed to an initial water pressure of -0.01 MPa. Formulations of solution, physical dry blend, and tablets were used. Measurements of NH3 volatilization were carried out using an air train system. Ammonia loss from surface-applied unamended urea ranged from 16 to 21% of urea-N applied. Amending urea with LS induced between 46 and 85% reduction in NH3 losses compared with the unamended urea. For tablet and physical dry blend formulations, banding reduced NH3 loss compared with the surface application. There were no significant differences in NH3 losses between surface-applied and banded treatments of solid fertilizer. Comparison of the effects of LS, NBPT, and PPD on NH3 volatilization showed that both NBPT and PPD were more effective in reducing NH3 loss than LS, but no significant differences between NBPT and PPD were found. },
    KEYWORDS = { Chemical reactions Evaporation Lignin Nitrogen fertilizers Organic compounds Phosphorus compounds Soils Sulfur compounds Urea Ammonia loss Clay soils Lignosulfonate Phosphoroamide Volatilization Ammonia },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

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