When plants take up foliar-applied metal-EDTA chelates, they can absorb and metabolise the metal. However, I cannot find any literature or resources that discuss the fate of the EDTA compound. Is it metabolised, and can the nitrogen in EDTA be used by the plant?
There is evidence [Article Foliar Application of Zinc Sulfate and Zinc EDTA to Wheat Le...
] of Zn-EDTA translocating as an intact chelate into wheat after being foliar applied, so the EDTA can definitely make its way into the leaf. What happens next?
Tal Cohen
J. C. Tarafdar thanks very much for that paper. It does mentions biological transformation of EDTA may have affected some of the chelator recovery data, and I need to keep looking to find more information on that.
Paul Milham - any recommendations for search terms or papers? To date I have found nothing describing the metabolisation of EDTA in planta.
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