Hard Freezes and Emerged Corn

Abstract

<p>Nearly half of the corn is emerged across Iowa as of May 9 with up to 60 percent emerged in the north central cropping district according to <a href="http://www.nass.usda.gov/Statistics_by_State/Iowa/Publications/Crop_Progress_&_Condition/2010/CWR1010.pdf">USDA-NASS</a>. As mentioned in a May 6 Integrated Crop Management News <a href="http://www.extension.iastate.edu/CropNews/2010/0505elmoreabendroth.htm" id="x-x-ICM article"></a>article, 2010 has been one of the best planting seasons in history. Unfortunately, recent cold temperatures and a hard freeze across central and northern areas of Iowa resulted in some foliar damage to emerged corn seedlings.</p>