Fertility

• Owen, J. H. (2008). Use soil & tissue sampling as a hedge against fertilizer cutbacks. Limbs & Needles 35(2): 21-22.
• Owen, J. H. (2007). 2006 trends in Fraser fir soil fertility. Limbs & Needles 34(1): 25-29.
• Rideout, J. (2005). Deep phosphorus incorporation. Limbs & Needles 32(3): 8-9.
• Rideout, J. W., Owen, J. H., Hinesley, L. E., Buol, S., and Allen, L. (2003). Soil and plant nutritional status of Fraser fir Christmas tree fields – a survey. In Sixth International Christmas Tree Research & Extension Conference IUFRO: 156
• Owen, J. H. (2001). Fall nutrients status & needle loss. Limbs & Needles 28(3): 5-7.
• Hinesley, L. E., and Snelling, L. K. (2000). Nitrogen increases fresh weight and retail value of Fraser fir Christmas trees. HortScience 35(5): 860-862.
• Hinesley, L. E., and Campbell, C. R. (1992). Crooked leaders and nutrition in Fraser fir Christmas trees. Can. J. For. Res.
  22: 513-520.