Title: Growth of some new poplar clones on sand and peat soils
Abstract: Plantations of the Populus clones 'Blom' and Fritzi Pauley' (balsam poplars), 'Androscoggin' (balsam hybrid), 'Oxford', 'Rap', and 'Rochester' (balsam/black poplar hybrids) and 'Dorskamp' and 'Robusta' (black poplar hybrids), on 13 Netherlands sites considered unsuitable or only moderately suitable for poplars, were evaluated at 5-14 year old. The soils were chiefly sand and peat, some loamy soil and one heavy clay. Site indices at different ages and height m.a.i. are shown for each clone and its planting sites. Preliminary conclusions are that on the sand and peat soils the new clones grew well or fairly well, but reclaimed peat soils were an exception, mainly because of rooting problems. Very high water tables affected root development (and hence growth) and K uptake. Like other black poplar hybrids, P. 'Dorskamp' was not suitable for soils with low water tables in the growing season, despite rapid growth in the first years. Clay soils caused initial (but not lasting) rooting problems.
Publication Year: 1977
Publication Date: 1977-01-01
Language: en
Type: article
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