Calcium and Nitrogen Nutrition of ‘Tifblue’ Rabbiteye Blueberry in Sand Culture1

Abstract

Abstract Calcium fertilization resulted in leaf Ca concentrations in ‘Tifblue’ rabbiteye blueberries ( Vaccinium ashei Reade) equivalent to those reported for low bush and highbush blueberries but did not change plant vigor or yield. Ammonium sulfate was superior to sodium nitrate as a N source, producing higher fruit yield, plant vigor, and leaf macronutrient content.