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Influence of Silicie Acid on Uptake of Mn, Al, Zn, and Cu by Tomatoes (Lycopersicum esculentum) Grown on an Acid Soil¹

ABSTRACT

Treatment of an acid Merrimac fine sandy loam with H₂SiO₃ significantly decreased the concentration and total uptake of Mn and Al in tissues of greenhouse grown tomatoes (Lycopersicum esculentum) but affected neither the uptake nor tissue concentrations of Cu or Zn. Yields of dry matter were not significantly increased by Na₂CO₃ treatments. Increases in yield of dry matter were more closely associated with decreased concentrations of Zn and Cu and less closely associated with decreased concentrations of Al and Mn.

¹ Contribution from The Connecticut Agr. Exp. Sta., New Haven.

² Former Associate Soil Scientist, The Connecticut Agr. Exp. Sta., now Associate Professor of Agronomy, University of Kentucky, and Soil Chemist, The Connecticut Agr. Exp. Sta., respectively.

Received for publication December 23, 1968. Accepted for publication March 24, 1969.