Six-year basal area responses to nitrogen fertilizer, either alone or in combination with sulphur, were compared with pre-treatment measures of foliar nitrogen and sulphur in 31 lodgepole pine stands in the Interior of British Columbia. Results from this analysis indicate that pre-fertilization levels of foliar nitrogen, sulphur, and inorganic sulphate-sulphur are useful for predicting whether lodgepole pine will respond significantly to fertilization with either nitrogen alone or a combination of nitrogen and sulphur, and for estimating the magnitude of the expected responses. By using these tools, the chances of making the appropriate fertilizer prescription may be significantly improved.
Brockley, R.P.. 2007. Using Foliar Nutrient Levels to Predict Lodgepole Pine Fertilization Response. British Columbia Ministry of Forests, Lands, Natural Resource Operations and Rural Development. Extension Note (FLNRORD). EN44
Topic: FLNRORD Research Program
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