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SUMMARY Superphosphate and urea produced large volume increases in 13-year-old maritime pine, Pinus pinaster (Aiton) growing on a lateritic podzolic soil. Growth curves over two years show the detailed effects of the fertilizers on seasonal growth. Volume increments were increased three-fold by...
SUMMARY The ‘Tree Monkey’ power pruner, Model KS 30, made by Fichtel and Sachs A.G. of the Federal Republic of Germany, was tested on several conifers grown in Australian plantations. Only reasonably straight trees with small to medium-sized, wide-angled branches were pruned satisfactorily (viz....
SUMMARY An aerial ignition system using an incendiary device and a helicopter can be used to backburn a large area safely and completely. The system was used to backburn 4,800 acres and helped bring under control a large fire in February 1968. The system and the conditions under which it was...
SUMMARY Colour values (luminance, dominant wavelength, purity) were determined for the heartwood of 52 Australian tree species according to the I.C.I, colour measurement system (International Commission on Illumination 1931). Colour values from within the visible spectrum were derived from...
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