Abstract
IRON versenate is now being widely used for supplying iron in plant nutrition studies1, and it seems likely that the use of versenates of essential micro-nutrients will be extended to horticultural and agricultural practice. Ferric potassium versenate has been used here for two years as a source of iron for oats, sugar beet and tomatoes, and has proved superior to ferric citrate, especially where the pH of the nutrient solution is greater than 6.0. It is not clear whether the complex molecule itself is absorbed or whether the iron is removed at the root surface by a contact-exchange mechanism, as has been suggested by some workers2.
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References
Jacobson, L., Plant Physiol., 26, 411 (1951).
Stewart, I., and Leonard, C. D., Science, 116, 564 (1952).
Crooke, W. M., Hunter, J. G., and Vergnano, O., Ann. Appl. Biol. (in the press).
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CROOKE, W. Effect of Nickel Versenate on Oat Plants. Nature 173, 403–404 (1954). https://doi.org/10.1038/173403b0
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DOI: https://doi.org/10.1038/173403b0
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