Summary
Relationships beween nutrient concentrations and the growth of the fast growing tropical eucalypt E. deglupta were examined at two sites in Papua New Guinea. At the Gogol Valley site a predominantly linear relationship was found between growth and foliar N over the range 0.68–2.04 per cent N. At the Kerevat site the relationship between growth and foliar nutrients was less strongly developed (foliar N varied from 1.77 to 3.36 per cent). The combined data could be described by a second degree polynomial. Height=11.05N − 2.03N2 − 3.52P − 4.46.
This accounted for 72 per cent of the variation in height. Based on this relationship a tentative critical foliar N concentration (corresponding with 90 per cent of maximum height) of 2.1 per cent is proposed. re]19760128
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Lamb, D. Relationships between growth and foliar nutrient concentrations in Eucalyptus deglupta . Plant Soil 47, 495–508 (1977). https://doi.org/10.1007/BF00011506
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DOI: https://doi.org/10.1007/BF00011506