Abstract
Correction of lime-induced chlorosis (LIC) was examined in potted calamondin (Citrus madurensis Loureiro) trees after symptoms of LIC had developed. A peat-plug-FeSO4 treatment was compared with peat alone, FeSO4 alone, Fe-EDDHA (Sequestrene-138), and a non-treated control. The morphology, peroxidase activity, chlorophyll concentration and total Fe concentration in leaves were evaluated after 7 months. Ferrous iron was extracted by 1,10-phenanthroline [containing ammonium fluoride (NH4F) to inhibit eventual interference of Fe3+] and determined spectrophotometrically. The combined peat-FeSO4 treatment gave satisfactory LIC correction and was comparable to the Fe-EDDHA treatment. The peat-plug-FeSO4 method may provide a practical solution for LIC in citrus and additional crops.
Contribution from the Agricultural Research Organization, the Volcanic Center, Bet Dagan, Israel, No. 2688-E.
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© 1991 Springer Science+Business Media Dordrecht
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Horesh, I., Levy, Y., Goldschmidt, E.E. (1991). Correction of lime-induced chlorosis in container-grown citrus trees by peat and iron sulfate application to small soil volumes. In: Chen, Y., Hadar, Y. (eds) Iron Nutrition and Interactions in Plants. Developments in Plant and Soil Sciences, vol 43. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-3294-7_42
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DOI: https://doi.org/10.1007/978-94-011-3294-7_42
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