Journal
BIORESOURCE TECHNOLOGY
Volume 99, Issue 6, Pages 1793-1800Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2007.03.033
Keywords
nursery substrates; peat; composts; native shrub propagation; plant nutrition
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In this study, the effect of a partial substitution of peat for compost on the growth and nutrition of a native shrub (Pistacia lentiscus L.) was tested. Composts were prepared from pruning and municipal solid wastes or pruning waste and sewage sludge. For preparing growing media each compost was added at a rate of 40%, fresh pine bark at 20% or 40% and peat at 20%, 40% or 60%. Aqueous extracts from the substrates did not impair germination of cress (germination bioassay). In relation to plants growing in peat-based substrate (used as a control), plants of the compost-based substrates reached better growth and nutrition, especially when using the sewage sludge-based compost, and the P uptake was notably enhanced. The concentrations of trace elements were far lower than the ranges considered phytotoxic for vascular plants. Detrimental effect derived from using fresh pine bark was not observed. (C) 2007 Elsevier Ltd. All rights reserved.
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