Summary
On a Typic Ustochrept soil incorporation of 10 tons/ha of a green manure plus submergence for 10 days followed by raising upland nursery checked iron chlorosis. In contrast, presubmergence with and without FYM and iron sulfate or pyrite were a failure. Nor weekly sprays with 3.0% iron sulfate were found very effective. The success of green manure plus submergence was associated with the mobilization of soil iron as a result of intense reduction and its subsequent retention in available form at a sufficient high level during the growth of upland nursery.
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Sharma, B.D., Katyal, J.C. Changes in DTPA-iron and management of iron chlorosis in rice nurseries. Plant Soil 69, 123–126 (1982). https://doi.org/10.1007/BF02185711
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DOI: https://doi.org/10.1007/BF02185711