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There have been numerous reports of corn that is slightly yellow, purple or striped. There are many reasons for these symptoms to occur. The top three that may cause this are 1) temporary or transient deficiency due to environmental conditions, 2) sidewall compaction and 3) nutrient shortage in the soil.
Cool, wet conditions in much of the Midwest and concerns regarding future weather will delay the normal cycle of fertilizer restocking, bringing significant uncertainty to the 2013 Q2 fertilizer markets, according to a new report released by researchers at the Rabobank International Food & Agribusiness Research and Advisory (FAR) group.
With the variation in conditions we have seen this spring there are a few issues that may show up in fields related to cool and wet soils. Purpling of corn leaves due to phosphorus (P) deficiency and early season interveinal striping due to sulfur (S) may occur if temperatures remain cool and we continue to have frequent rains.
Soil testing for K (04/03/13)
Don’t overlook the potential of starter (03/27/13)
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