• Gagnon, J.D.
  Laurentian Forest Research Centre, Canadian Forestry Service, Department of the Environment, Sainte-Foy, Quebec
  
• Hunt, K.
  Western Forest Products Laboratory, Canadian Forestry Service, Department of the Environment, Vancouver, British Columbia
  

Samples of five pairs of fertilized and non-fertilized 60-year-old natural balsam fir (Abies balsamea (L.) Mill.) growing in the Quebec boreal forest region were pulped by the kraft process and the specific gravity was measured. Analyses carried out 7 years after treatment on the last seven terminal internodes revealed the mean pulp yield of trees fertilized exceeded that of non-fertilized by 7%, while the mean specific gravity was about 6% lower.