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Optimum corn planting dates washing away?

Delays in corn planting are possible into next week as more wet weather remains in the forecasts for much of the Corn Belt, according to Freese-Notis Weather. As mid-April approaches, producers wonder at what point does maximum yield get lost from ideal planting dates.

The following data highlights optimum planting dates for major Corn Belt states such as Iowa, Illinois, Nebraska, and Indiana.

The charts above show the optimum planting dates for maximum corn and soybean yield in Corn Belt states such as Nebraska, Iowa, Illinois, and Indiana.

Along with planting date environment, timing of rainfall and/or irrigation, and other management factors impact yield. Bob Neilsen, Purdue University Agronomist encouraged producers not to get carried away about the influence of planting date on total corn production.

"Mudding in" a crop early to avoid planting late will almost always end up being an unwise decision. While important, planting date is only one of many yield-influencing factors for corn," Neilsen said.

For Nebraska and Iowa, mid-late April is the best time to reach maximum corn yields, according to Golden Harvest Up Front Research and Iowa State University. For Illinois, the early-mid May period is recommended for corn planting, and mid-April to mid-May for Indiana, according to research reported by University of Illinois and Purdue University.

For soybeans, Iowa producers have an optimum planting date between mid-late April, with little bushels per acre drop-off between early-mid May. Illinois producers have an optimum planting date of early-mid May, Indiana mid-late May, and Nebraska early-mid May.

Delays in corn planting are possible into next week as more wet weather remains in the forecasts for much of the Corn Belt, according to Freese-Notis Weather. As mid-April approaches, producers wonder at what point does maximum yield get lost from ideal planting dates.

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