Canadian Forest Service Publications
Production accélérée au moyen de l'urée de semis de Picea mariana en contenants. 1971. Boudoux, M.; Gonzalez, A. s.n., S.l. Rapport d'information Q-F-X-18. 37 p.
Issued by: Laurentian Forestry Centre
Catalog ID: 14963
Series: Information Report (LFC - Québec)
Availability: PDF (download)
Black spruce seedlings (Picea mariana Mill. (B.S.P.)) were grown in wood containers of different dimensions, and tested with urea-based nutrient solutions of different concentration. Very marked interactions were observed between the growth of seedling, the dimension of the container and nitrogen concentration. Under certain conditions urea proved to be a powerful growth accelerator to the extent of increasing growth rate by 100%. However, mortality occurred beyond a certain concentration of urea.