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Home → Publications → Tree Planters' Notes → Tree Planters' Notes Volume 20, Number 1 (1969) → Effects of Competition on Post-Planting Growth of Potten White

Effects of Competition on Post-Planting Growth of Potten White

Plantations of white spruce (Picea glauca (Moench) Voss have often been considered unsatisfactory because of poor top growth or check in early years (16, 20, 21). Check occurring because of heavy weed competition has been noted (21, 22). This report is based on greenhouse pot studies of white spruce, grown in competiton with grass sod, hard maple (Acer saccharum Marsh.), and black spruce (P. mariana (Mill.) BSP.). The inhibitory influence of grass sod on growth was examined further in a pot study comparing the presence of living grass roots to irrigation by a leachate from grass sod, and an extract of crushed grass roots.


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Author(s): R. E. Mullin

Publication: Tree Planters' Notes - Volume 20, Number 1 (1969)

Volume: 20

Number: 1