Predicting Maturity Date of Late-Planted and Uneven Corn

Joe Lauer, Corn Agronomist

During cool growing seasons, especially when planting is delayed due to wet spring conditions, growers are concerned about whether their corn is vulnerable and will reach maturity before normal frost dates. Often the range in planting dates have implications at harvest time, especially for silage because grain and dairy producers often negotiate the sale of corn in fields that are borderline for development (Figure 1).

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