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This article in AJ

  1. Vol. 65 No. 3, p. 516-517
    Received: Sept 23, 1972

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Flax Growth in Cecil Soil Containing Mordant Violet 391

  1. K. S. LaFleur and
  2. G. R. Craddock2



The purpose of this study was to determine if addition of a metalizable anionic dye to a phosphate-fixing soil would release phosphate for plant consumption. Some evidence of phosphate release was obtained.

Addition of Mordant Violet 39 to Cecil surface soil increased flax growth in this soil. In a growth chamber experiment incorporating the dye, plant height increased about 40%, planet weight increased about 60%, and plant phosphorus increased about 100%.

The dye-grown flax was necrotic. It contained more manganese and less calcium and magnesium than control flax.

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