Hybrid corn makes better use of nitrogen

Wallheimer, Brian
April 2012
Western Farm Press Exclusive Insight;4/30/2012, p8
The article focuses on a data review of nitrogen use studies for corn from periods 1940-1990 and 1991-2011. The research was conducted by Purdue University agronomy professor Tony Vyn and doctoral student Ignacio Ciampitti to determine if high corn yield resulted from nitrogen efficiency or from further provision of nitrogen. According to the study, there was a notable increase in yield in the second period when corn hybrids were already traded and plants needed less space to grow.


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