On March 27, in a communication distributed by DuPont Pioneer, a research study was incorrectly attributed to DuPont Pioneer agronomy research. The research entitled, Identifying factors controlling the continuous corn yield penalty, is a University of Illinois study led by Laura Flint Gentry, Ph.D. A paper summarizing the U of I study was written by DuPont Pioneer employee Andy Hegenstaller, agronomy research manager, and the communication distributed to media was entitled:
Yield Limiting Factors in Continuous Corn Production.
Here is the reference for the U of I study: Gentry, F., M.L. Ruffo, and F.E. Below, 2013. Identifying factors controlling the continuous corn yield penalty. Agronomy Journal 105:295-303.
DuPont Pioneer regrets any confusion that may have been caused by this error.