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    Effects of Gliricidia sepium (Jacq) Steud and Leucaena leucocephala (Lam.) de Wit on growth and develoment of Imperata cylindrica (L.) Reuschel

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    Date
    1991
    Author
    Anoka, U.A.
    Akobundu, I.O.
    Okonkwo S.N.C.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    Field studies carried out in a forest transition site on a tropical Alfisol in southwestern Nigeria, show that shading by gliricidia (Gliricidia sepium (Jacq.) Steud) and leucaena (Leucaena leucocephala (Lam.) de Wit) hedgerow species reduced density of speargrass (Imperata cylindrica (L.) Raeuschel) by 67% and 51%, respectively. Shoot biomass of speargrass decreased by 81% and 78% in gliricidia and leucaena hedgerows, respectively. Reduction in speargrass rhizome biomass in gliricidia plots was 96% while rhizome reduction in the leucaena plots was nearly 90%. Rhizome mortality was significantly higher in gliricidia plots than in leucaena and control plots. The bulk of rhizomes was found between 10 cm and 20 cm of soil depth but rhizome did not penetrate further than 30 cm depth in the Alfisol in which this study was carried out. Gliricidia was better than leucaena hedgerow species in suppressing speargrass.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5949
    IITA Subjects
    Weeds
    Agrovoc Terms
    Imperata Cylindrica; Gliricidia Sepium; Leucaena Leucocephala; Shading; Weed Control
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Collections
    • Journal and Journal Articles4835
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