IEM Daily Feature
Monday, 30 October 2017

GDD Maturity Struggle

Posted: 30 Oct 2017 06:41 AM

The corn harvest in Iowa this year has been a bit behind schedule due in part to wet conditions and a late maturing crop. Thankfully, an early freeze did not happen, so crops were able to eventually reach maturity. The featured chart looks at the period between accumulating 2200 to 2500 Growing Degree Days (GDD) based on the given planting date for a location in northeastern Iowa. These chosen GDDs levels represent maturity of commonly grown corn. Corn that was planted late into May really struggled to reach maturity with the slow GDD accumulation this year.

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