LabrecqueTeodorescuBabeuxEtAl1994

Référence

Labrecque, M., Teodorescu, T.I., Babeux, P., Cogliastro, A. and Daigle, S. (1994) Impact of herbaceous competition and drainage conditions on the early productivity of willows under short-rotation intensive culture. Canadian Journal of Forest Research, 24(3):493-501.

Résumé

The productivity of trees under short-rotation intensive culture is influenced by herbaceous competition and drainage conditions. During the first year of establishment of Salix discolor Muhl. and Salix viminalis L., four weed-suppression treatments were applied to two sites showing different drainage conditions, one well drained and the other is poorly drained. On the well-drained site, the productivity of the trees increased in all the plots under treatment, whereas on the poorly drained site, only the use of a plastic mulch increased the biomass production. The mean productivity on the well-drained site was always superior to the productivity measured on the poorly drained site except when the vegetation was controlled by the use of a plastic mulch. The analyses related to nutrition revealed that the trees on the well-drained site absorbed more nutrients than those on the poorly drained site. Salix discolor showed a higher uptake of potassium and S. viminalis, a higher concentration of calcium. Our results indicate that weed suppression is essential to the establishment of trees in short-rotation intensive culture and that the use of a plastic mulch proved to be particularly profitable on marginal sites.

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@ARTICLE { LabrecqueTeodorescuBabeuxEtAl1994,
    AUTHOR = { Labrecque, M. and Teodorescu, T.I. and Babeux, P. and Cogliastro, A. and Daigle, S. },
    TITLE = { Impact of herbaceous competition and drainage conditions on the early productivity of willows under short-rotation intensive culture },
    JOURNAL = { Canadian Journal of Forest Research },
    YEAR = { 1994 },
    VOLUME = { 24 },
    PAGES = { 493-501 },
    NUMBER = { 3 },
    NOTE = { Labrecque, m teodorescu, ti babeux, p cogliastro, a daigle, s },
    ABSTRACT = { The productivity of trees under short-rotation intensive culture is influenced by herbaceous competition and drainage conditions. During the first year of establishment of Salix discolor Muhl. and Salix viminalis L., four weed-suppression treatments were applied to two sites showing different drainage conditions, one well drained and the other is poorly drained. On the well-drained site, the productivity of the trees increased in all the plots under treatment, whereas on the poorly drained site, only the use of a plastic mulch increased the biomass production. The mean productivity on the well-drained site was always superior to the productivity measured on the poorly drained site except when the vegetation was controlled by the use of a plastic mulch. The analyses related to nutrition revealed that the trees on the well-drained site absorbed more nutrients than those on the poorly drained site. Salix discolor showed a higher uptake of potassium and S. viminalis, a higher concentration of calcium. Our results indicate that weed suppression is essential to the establishment of trees in short-rotation intensive culture and that the use of a plastic mulch proved to be particularly profitable on marginal sites. },
}

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