Clark SD | Magicmatt41 - 8/29/2014 19:27
You can take off 6.8 GDUs per day it was planted after May 1st. So in your case 2540 GDU corn is more like a 2384 GDUs to maturity. Probable need a week into October.
I think what you said is true. Here is link to a article that was pointed out to me by Bob Neilsen at Purdue University. http://www.agry.purdue.edu/ext/corn/news/timeless/RStagePrediction.html
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