Notes: Spatial and Temporal Variability of Foliar Nutrient Levels in Fraser Fir Christmas Trees
Abstract:The variation of Fraser fir (Abies fraseri [Pursh] Poir.) foliar nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg) levels within plantations, the tree crown, and season of the year was studied. Extensive variation in nutrient concentrations existed. The data show that use of foliar nutrient levels for diagnosing nutrient sufficiency without regard to this variation could cause erroneous fertilization prescriptions. Recommended foliar sampling technique consists of sampling current-year's tissue from 2- or 3-yr-old south-facing branches in October. For. Sci 35(2): 632-639.
Document Type: Miscellaneous
Affiliations: Professor of Silviculture and Forest Soils, Virginia Polytechnic Institute and State University, Blacksburg, VA
Publication date: June 1, 1989
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