Planting delays or replant situations often cause questions about corn hybrid maturity and when to switch to earlier maturity products. While the best strategy may vary based on a grower’s ability/desire to handle higher moisture corn at harvest, there is a great deal of university and industry data that suggests staying with adapted, full-season hybrids at least through late May offers the greatest income potential. Research at Purdue and The Ohio State University indicates that as planting is delayed beyond about May 1, the number of GDUs required from planting to physiological maturity decreases by about 6.8 GDUs per day of delayed planting.
This information is brought to you by Brad Verdun, Pioneer Account Manager April 2008 Walking Your Fields® newsletter
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