Ref ID: 10935
Ref Type: Journal
Authors: Close, D. C., Bail, I., Hunter, S. J., and Beadle, C. L.
Pub Date: 1-2-2005
Journal Name: Forest Ecology and Management
Volume: 205
Issue: 1-3
Start Page: 397
End Page: 403
ISBN/ISSN:
Keywords: Australia/boost/concentration/conventional/deficiency/early/effect/Eucalyptus/Eucalyptus globulus/fertilisation/foliar nitrogen/globulus/Green Triangle,Victoria/growth/height/method/N/N concentration/new/New South Wales/nitrogen/nursery/nutrient loading/performance/phase/plantations/planting/potential/production/region/seedling/seedling containers/seedling specification/seedlings/south-west Western Australia/study/technique/time/toxicity/trial/uptake/Victoria/Western Australia/green/forest/ecology/management/volume
Abstract: Five nutrient-application methods (conventional, starve, boost, exponential and exponential nutrient-load) applied to Eucalyptus globulus seedlings growing in 85 cm3 Lannen® containers and one method (exponential) applied to seedlings in 45 cm3 Colmax® containers were investigated as potential ways of attaining a specified foliar nitrogen (N) concentration of 15-20 g kg-1 at planting. The study was undertaken at two nurseries, Jayfields in New South Wales (Australia) and Forrest in south-west Western Australia (WA). All methods delivered the same total amount of N (a 'conventional' level of 25 mg N seedling-1), except the exponential nutrient-load method that delivered twice the amount of N. Seedlings from Jayfields were planted at three trials in the 'Green Triangle' (GT) region (north-west Victoria, Australia) and from Forrest at two trials in south-west WA. Seedlings in the conventional, starve and boost treatments had similar foliar N 6 and 20 weeks after application in both nurseries. The exponential fertilising treatment had less foliar N at 6 weeks than at 20 weeks at Forrest nursery, but similar N at both times at Jayfields. Seedlings in the exponential nutrient-load treatment had the highest foliar N at 20 weeks in both nurseries. Seedling height, five months after planting, was linearly related to foliar N at planting in the GT, but not in the south-west WA, trials. Exponential nutrient-loading is a fertilisation technique that may decrease the likelihood of toxicity and deficiency, early and late in the nursery production phase, respectively. Application of N greater than the conventional 25 mg seedling-1 is required to attain the specification of 15-20 g kg-1 foliar N concentration at Jayfields and Forrest nurseries, thereby maximising after-planting performance where N limits growth.
The full-text link provided is a pre-published version of the article published in Forest Ecology and Management in the volume stated in this citation. The publisher of Forest Ecology and Management is Elsevier ( http://www.elsevier.com )
Notes: Entered by Maria Ottenschlaeger (17/08/2004)
Reprint: Not in File
Program: SPF Sustainable Management
Project: B3; B3
Deliverable: B3-5.3; B3-5.3
Confidentiality: Confidential to All Partners
Availability: Authors
Report: Annual Report 2004/5
Type: Article
Address: Dugald.Close@ffp.csiro.au