Canadian Forest Service Publications
Données nouvelles sur la fertilisation des plantations d'épinette blanche à Grand-Mère, Québec. 1968. Gagnon, J.D.; Boudoux, M. s.n., S.l. Rapport d'information Q-X-5. 18 p.
Issued by: Laurentian Forestry Centre
Catalog ID: 15241
Series: Internal Report (LFC - Québec)
Availability: PDF (download)
The influence of farmyard manure applied at the time of plantation on white spruce (Picea glauca (Moench) growth at Grand'Mère, has always been described as spectacular. However, a close examination of the sites studied showed that the criteria used to reach such a conclusion were incorrect. Indeed, the control plot, chosen in 1920, runs on two clearly different sites. For a better appreciation of the influence of this manure on tree growth, studies were carried out in 1966 on a comparison of the development of the treated plantations with that of natural forest stands and stands established on good sites on formerly farmed fields. The volume of wood, the physico-chemical properties of the soils, the concentration of nutrient elements in white spruce needles, and the periodic growth do not lead to the conclusion that, after 40 years of growth, the fertilized sites are superior to non-fertilized ones. At best, the beneficial effect of the treatment is felt for a short period of five to ten years following its application.