CavanaghGasserLabrecque2011

Référence

Cavanagh, A., Gasser, M.O., Labrecque, M. (2011) Pig slurry as fertilizer on willow plantation. Biomass and Bioenergy, 35(10):4165-4173.

Résumé

The aim of this study is to investigate the effect of the use of pig slurry as fertilizer on the productivity of a willow plantation, while evaluating the risk of a negative impact on the environment. We evaluated plant response to increasing slurry amounts and compared this response to the effect of mineral fertilization. We also verified the impact of slurry on soil nutritional content as well as on nitrate and phosphorus concentrations in the soil. Although slurry nitrogen was less efficient than mineral fertilizer, the results of our study show that slurry constitutes an effective fertilizer for willow plantations. In fact, yields over two years on plots that received increasing amounts of slurry were on the order of 30.0-32.9 t/ha. We observed an increase in soil levels of nitrates, copper and zinc as a function of increasing slurry amounts. These levels actually decreased during the second growing season, possibly due to uptake by the willows. Springtime concentrations of water in lysimeters indicated that the maximum quantity of slurry tested was accompanied by a certain risk of nitrates leaching into the soil. (C) 2011 Elsevier Ltd. All rights reserved.

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@ARTICLE { CavanaghGasserLabrecque2011,
    AUTHOR = { Cavanagh, A. and Gasser, M.O. and Labrecque, M. },
    TITLE = { Pig slurry as fertilizer on willow plantation },
    JOURNAL = { Biomass and Bioenergy },
    YEAR = { 2011 },
    VOLUME = { 35 },
    PAGES = { 4165-4173 },
    NUMBER = { 10 },
    NOTE = { Cavanagh, Annie Gasser, Marc Olivier Labrecque, Michel },
    ABSTRACT = { The aim of this study is to investigate the effect of the use of pig slurry as fertilizer on the productivity of a willow plantation, while evaluating the risk of a negative impact on the environment. We evaluated plant response to increasing slurry amounts and compared this response to the effect of mineral fertilization. We also verified the impact of slurry on soil nutritional content as well as on nitrate and phosphorus concentrations in the soil. Although slurry nitrogen was less efficient than mineral fertilizer, the results of our study show that slurry constitutes an effective fertilizer for willow plantations. In fact, yields over two years on plots that received increasing amounts of slurry were on the order of 30.0-32.9 t/ha. We observed an increase in soil levels of nitrates, copper and zinc as a function of increasing slurry amounts. These levels actually decreased during the second growing season, possibly due to uptake by the willows. Springtime concentrations of water in lysimeters indicated that the maximum quantity of slurry tested was accompanied by a certain risk of nitrates leaching into the soil. (C) 2011 Elsevier Ltd. All rights reserved. },
}

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