Home / Crops / Corn High Yield Team / Late N applications can pay

Late N applications can pay

Gil Gullickson 10/29/2010 @ 12:22pm Crops Technology Editor for Successful Farming magazine/Agriculture.com

In many cases, farmers can garner full yields even with late nitrogen (N) applications. Peter Scharf, University of Missouri Extension soil fertility specialist, created this graph that shows the effect of delayed N timing on corn yields.

The data from five states shows that in most cases, full corn yields can occur even if farmers apply N late. This includes no more than 60 pounds per acre of N was applied at planting. Scharf points out the effects of the delay should even be smaller for producers who applied a full N rate and then lost N as the growing season occurred.



Scharf notes MU researchers had rescue N studies with several producers in 2010. They applied N mainly around the tassel or silking state. Results at presstime from three Missouri farmers include:

  • Producer A, 3 tests in west-central Missouri: 44, 54, and 27 bushel per acre increases.
  • Producer B (1 test in west-central Missouri: 7 bushels per acre increase.
  • Producer C (2 tests in western Illinois):  2 tests, 12 and 41 bushels per acre.

On average, these Missouri tests average out to nearly a 31-bushel per acre yield increase.

CancelPost Comment

Increase compared to what? 12/07/2010 @ 1:37pm Is the 31 bushel increase compared to corn recieving no N? What was the yield of corn which recieved a full N rate at planting or V3 IE traditional timing?

Report Abuse Reply
MORE FROM GIL GULLICKSON more +

Syngenta: No Judgment Reached on Agrisure… By: 05/19/2015 @ 12:44pm If you’ve heard there’s been a judgment rendered against Syngenta in the Agrisure Viptera corn…

Don’t Forget About Potassium in 2015 By: 05/11/2015 @ 4:27pm Of the big three crop nutrients of nitrogen (N), phosphorus (P) and potassium (K), K often is often…

8 Weed Control Tips for 2015 By: 05/11/2015 @ 4:02pm You’ve probably heard of The Three Stooges: Larry, Curly, and Moe. Well, you may have a trio of…

MEDIA CENTERmore +
This container should display a .swf file. If not, you may need to upgrade your Flash player.
The 'A' List: Weekend Market Volatility and Planting Nerves
Agriculture.com

FREE MEMBERSHIP!

CLOSE [X]