Abstract
Laboratory studies on the reaction of zinc-chelates with a Zn-deficient saline-sodic soil indicated that Zn-DTPA was more efficient than Zn-EDTA, which in turn was more efficient than Zn-fulvate, in maintaining optimal amounts of zinc in soil-solution. Results of a greenhouse experiment showed that zinc-chelates were more effective than zinc sulphate. The plant uptake and utilisation of zinc from the applied sources, decreased in the following order: Zn-DTPA>Zn-fulvate>Zn-EDTA>ZnSO4. These results suggest that zinc nutrition of rice crop in the salt affected soils can be effectively regulated by the application of water soluble, natural or synthetic zinc-chelates.
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Chand, M., Randhawa, N.S. & Bhumbla, D.R. Effectiveness of zinc chelates in zinc nutrition of greenhouse rice crop in a saline-sodic soil. Plant Soil 59, 217–225 (1981). https://doi.org/10.1007/BF02184195
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DOI: https://doi.org/10.1007/BF02184195