Red spruce (Picea rubens Sarg.) is an important pulpwood species in northern New England and Canada. Management objectives favor this species and the closely related black spruce (Picea mariana Mill. BSP) on many sites. Foliar nutrient concentrations of unfertilized, economically mature, red spruce trees growing on four different sites and over two- and three-year periods are presented here and compared to foliar concentrations reported by other scientists.https://digitalcommons.library.umaine.edu/aes_techbulletin/1136/thumbnail.jp
