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Fluoride uptake by tea plants is affected by Ca and pH
Tea plants commonly accumulate large quantities of fluoride (F) from soils containing normal amounts of F. Ruan et al. (pp. 97-105) examine how F uptake is affected by pH and Ca in nutrient solution and soil. They show that supplying Ca depresses F uptake possibly by changing root cell wall properties and/or membrane permeability, and by affecting F speciation and concentration in the soil solution.
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