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installment

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CLEFT

https://doi.org/10.1007/978-3-662-67495-6single most important practice then is weed control; failure to control weeds for the first few years may lead to very substantially reduced tree growth rates. Generally, the trees grow large enough after a few years that their canopy shades out most weeds after that time. After the plantation is ha

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https://doi.org/10.1007/978-3-662-62880-5eded. Considerable experimentation is necessary for any tree species in any region to determine when and how much fertiliser is required during the early years of a plantation to maximise growth. The nutrients available on a site from the soil and that have been added as fertiliser are such a vital

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Documentation for the hfloat Library, the sawn timber. Silviculturalists must adjust the density of a plantation so that it produces logs of the desired size and quality in the most cost-effective way. They do so by selecting an appropriate number and spatial arrangement of trees at the time of planting and by judicious removal of some

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David H. Bailey,Jonathan M. Borweinntation forests and are discussed only briefly. Abiotic agents of plant disease include air or soil pollution, high or freezing temperatures, pesticides, drought, salt, poor soil aeration, nutrient deficiency or mechanical damage; these too are less common in plantation forests and are also discusse

Peculate

Pichlmayrs Chirurgische Therapietion techniques, including cuttings, air-layering or tissue culture. Genetic engineering, the artificial manipulation of the genes that a plant contains, is becoming an important additional part of tree breeding programmes. Genetically engineered traits being considered in various tree species are r