Canadian Forest Service Publications

Bref aperçu des propriétés chimiques et physico-chimiques de la tourbe utilisée dans les conteneurs du Québec (CRIQ) (Brief outline of chemical and physicochemical properties of peat used in the Quebec containers (CRIQ)). 1981. Gonzalez, A. Environnement Canada, Service canadien des forêts, Centre de recherches forestières des Laurentides, Sainte-Foy (Québec). Rapport d'information LAU-X-48B. 21 p.

Year: 1981

Issued by: Laurentian Forestry Centre

Catalog ID: 14592

Language: French / English

Series: Information Report (LFC - Québec)

Availability: PDF (download)

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Abstract

Current needs for reforestation material have resulted in intensive culture of containerized seedlings. A great variety of containers have been developed across Canada over the last decade. Essentially the same substrate, sphagnum peat, is used in all.

This work investigated the characteristics of a container developed by the Quebec Department of Energy and Resources at the Industrial Research Center of Quebec (CRIQ); promising results suggest that it can be utilized throughout Quebec.

This study concerns the following properties of peat for seedling growth: development of nitrogen forms, retention of cations supplied by fertilization and moisture regime, etc. Although peat is low in nutrient elements, cation and water retention capacity are good. Leaching eliminates possible excess fertilizer. Overall drying of peat is slow, but the upper part of the container may dry out quickly, giving rise to an excessive local concentration of fertilizer.