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Accumulation of Strontium and other Cations by Plant Species Grown on Two Soil Types¹

Concentrations of Sr, Ca, Mg, and K were determined in shoot tissues of 22 plant species representing six families and ranging from 51 to 88 days of age which grew on Crofton silty clay loam and Norfolk loamy sand. Crofton soil had a pH of 7.85 and a CEC of 20.27 meq/100 g, whereas Norfolk soil had a pH of 5.8 and a CEC of 4.4 meq/100 g.

A positive correlation of 0.84 existed between Ca and Sr concentrations among the plants tested.

There was approximately a five-fold difference in Sr concentration between shoot tissue of mustard, Brassica alba (L.) Boiss., big bluestem, Andropogon gerardi Vitman, and grain sorghum, Sorghum bicolor (L.) Moench.

Key Words: Cation accumulation • Soil types • Exchangeable strontium

² Formerly Associate Professor, Department of Biology (now Research Specialist-Herbicides, Geigy Chemical Corporation, Ardsley, N.Y. 10502) and Research Fellow, Department of Plant and Soil Science, Tuskegee Institute.

Received for publication October 1, 1969.