Demand for Nitrogen

From AgVenture's Seeds for Success Agronomy Update, May 2014

Southern Edition

Bigger corn yields require more nitrogen (N) and more N at the right time and place. If you are expecting bigger yields, you had better be planning on feeding the crop sufficient N to maximize yield potential. Let’s say a producer had always applied about 70/lbs N per acre and those fields regularly yielded 100-150 bushel per acre. But with only that much “food” for the crop, that is as high a yield as he can reach.  If he is expecting greater yields, he needs to adjust the N applied to maximize yield potential. Consider thinking about necessary additional N needed to reach your yield goal in terms of percentage rather than pounds. It helps illustrate the additional need to feed the crop. (graphic, Iowa State University)