What’s the most economic rate of nitrogen for corn? Where is that line between feeding the crop the right amount of the yield-producing nutrient and wasting dollars on excess product?
University of Guelph sustainable cropping systems professor Dr. Adrian Correndo says a lot of field trials and research brainpower has been invested in identifying an economic optimal nitrogen rate (EONR) but it’s incredibly difficult to peg a specific number that growers can plug into cropping budgets. When it comes to corn nitrogen rates “uncertainly is king,” he notes.
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