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TB125: Fertilization of Eastern White Pine (Pinus strobus L.) in Maine Shows Economic Potential
Robert K. Shepard, Thomas B. Brann
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Abstract
Plots in seven eastern white pine sawlog stands were treated with nitrogen at rates of 0, 56, 112, and 224 kg/ha. After four years the largest increase in basal area growth, 0.31 dm2 /tree, and volume growth, 13.0 m3 /ha, occurred in plots that received 112 kg/ha. It appears that an application rate of 112 kg/ha may provide a real return of 15% or more in some stands.