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| Disease: Iron Deficiency Chlorosis |
Your soybean checkoff.
Delivering Results.
Iron Deficiency Chlorosis - Risk Assessment
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| Field symptoms of IDC. Click on image to view a larger version. Photo credit: University of Nebraska |
Recent research indicates that the following variables are indicators of potential iron deficiency chlorosis:
- history of IDC
- high soil pH (greater than 7.5 - 7.8)
- high soil moisture, in particular heavy soils that remain wet, or low, wet pockets of the field
- flooded soil
- high natural bicarbonate levels which are generally indicated by high calcium carbonate equivalents and high soluble salts.
- low soil temperatures
- residual nitrates from previous crops