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Influence of Fertilizer and Lime Rates on Nutrient Concentration in Highbush Blueberry Fruit1


Concentrations of N, P, K, Ca, Mg, Mn, Fe, Zn and Cu in blueberry fruit (Vaccinium corymbosum L. cv. Wolcott) as influenced by 3 rates of N, P, and K and 2 rates of lime were determined for 2-4 years. Concentration varied among years, but the variation was much less for N, P, K, and Ca than for Mg and the micronutrients. Application of N, P, or K increased the concentration of the element applied. Application of lime did not influence elemental concentrations. Increasing N rates decreased fruit Ca, and P decreased Mn concentrations each year.