Summary
Variation in concentrations of N, K, Mg, and Ca in vegetative-buds, leaves, twigs, and male catkins of trembling aspen (Populus tremuloides Michx.), determined throughout a growing season in central Minnesota, reflected the different physiological roles of the nutrients. Practical implications are discussed.
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McColl, J.G. Seasonal nutrient variation in trembling aspen. Plant Soil 54, 323–328 (1980). https://doi.org/10.1007/BF02181859
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DOI: https://doi.org/10.1007/BF02181859