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The impact of timing and duration of grass control on growth of a young Eucalyptus globulus Labill. plantation


Adams, PR and Beadle, CL and Mendham, NJ and Smethurst, PJ, The impact of timing and duration of grass control on growth of a young Eucalyptus globulus Labill. plantation, New Forests, 26, (2) pp. 147-165. ISSN 0169-4286 (2003) [Refereed Article]

DOI: doi:10.1023/A:1024490707175


Interference by an introduced grass, Holcus lanatus L. (Yorkshire fog grass) in a young E. globulus (Tasmanian blue gum) plantation was investigated. The objectives were to determine (1) the 'critical period' of competition, and (2) how the timing and duration of competition was related to the interaction between tree growth and resource availability. This was investigated during the first two years of establishment. Weed interference was severe with height and diameter growth of weedy trees being 52% and 40% of weed-free trees, respectively, at age two years. Most growth losses occurred during the first year. The critical period of weed interference was from planting to age 18 m and effective weed control was required for this period to maximise tree growth potential. The application of nitrogen to weedy trees promoted a significant growth response suggesting that competition for nitrogen was occurring. There was no significant response to level of irrigation. The use of critical period analysis is discussed.

Item Details

Item Type:Refereed Article
Research Division:Environmental Sciences
Research Group:Soil sciences
Research Field:Soil sciences not elsewhere classified
Objective Division:Plant Production and Plant Primary Products
Objective Group:Environmentally sustainable plant production
Objective Field:Environmentally sustainable plant production not elsewhere classified
UTAS Author:Adams, PR (Mr Paul Adams)
UTAS Author:Beadle, CL (Dr Christopher Beadle)
UTAS Author:Mendham, NJ (Dr Neville Mendham)
UTAS Author:Smethurst, PJ (Dr Philip Smethurst)
ID Code:32842
Year Published:2003
Web of Science® Times Cited:51
Deposited By:Agricultural Science
Deposited On:2005-05-24
Last Modified:2005-05-24

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