Summary
Laboratory incubation experiment was conducted with a clay loam alluvial lowland rice soil to study the relative effectiveness of two sources of Zn (ZnEDTA and ZnSO4) in maintaining Zn availability in soil under two moisture regimes (saturated and waterlogged) both in presence as well as absence of added organic matter. The results showed that ZnEDTA was always more effective than ZnSO4 in maintaining higher amount of zinc in available form in soil for a longer perid. Results of greenhouse experiment conducted with rice showed that concentration and uptake of Zn by roots were generally higher with ZnEDTA than with ZnSO4 both in presence and absence of added organic matter, whereas in respect of shoot this was true only in absence of added organic matter.
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Chatterjee, A.K., Mandal, L.N. Zinc sources for rice in soil at different moisture regimes and organic matter levels. Plant Soil 87, 393–404 (1985). https://doi.org/10.1007/BF02181906
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DOI: https://doi.org/10.1007/BF02181906