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  • Effects of nitrogen fertilisation and weed control on nutrition and growth of a four-year old Araucaria cunninghamii plantation in subtropical Australia

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    Author(s)
    Xu, ZH
    Bubb, KA
    Simpson, JA
    Griffith University Author(s)
    Xu, Zhihong
    Year published
    2002
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    Abstract
    Foliar nutrient concentration and stand growth of a four-year-old hoop pine (Araucaria cunninghamii) plantation, grown on a second-rotation site in subtropical Australia, were examined during a period of 18 months in response to application of nitrogen (N) fertiliser and chemical weed control (WC). Application of either N fertiliser at 50 kg ha-1 or WC of 3-m band spraying along tree rows with glyphosate at 3.6 litres ha-1 (48% active ingredient) resulted in similar, significant improvements in both N nutrition and stand growth in the 18-month period, compared with the control without any N addition or WC. A combination of ...
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    Foliar nutrient concentration and stand growth of a four-year-old hoop pine (Araucaria cunninghamii) plantation, grown on a second-rotation site in subtropical Australia, were examined during a period of 18 months in response to application of nitrogen (N) fertiliser and chemical weed control (WC). Application of either N fertiliser at 50 kg ha-1 or WC of 3-m band spraying along tree rows with glyphosate at 3.6 litres ha-1 (48% active ingredient) resulted in similar, significant improvements in both N nutrition and stand growth in the 18-month period, compared with the control without any N addition or WC. A combination of both N addition and WC further improved the N nutrition and stand growth compared with either the N addition or WC alone. The WC mainly improved the stand N nutrition. Foliar nutrient concentration and stand growth data indicated that N deficiency was a major factor limiting the plantation productivity and there was no significant interaction in improving stand N nutrition and growth between the N addition and WC under the experimental conditions. Additional N fertiliser or WC or both would be required to improve the stand N nutritional status and enhance the plantation productivity 18 months after the initial N and WC treatments.
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    Journal Title
    Journal of Tropical Forest Science
    Volume
    14
    Issue
    2
    Publisher URI
    https://www.frim.gov.my/publication/journal-of-tropical-forest-science-jtfs/
    Copyright Statement
    © The Author(s) 2002. The attached file is posted here with permission of the copyright owners for your personal use only. No further distribution permitted. For information about this journal please refer to the journal's website or contact the authors.
    Subject
    Forestry sciences
    Publication URI
    http://hdl.handle.net/10072/22229
    Collection
    • Journal articles

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