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 +

USDA Allows Commercialization of Dow… By: 09/18/2014 @ 9:53am USDA has given the thumbs-up to Dow AgroSciences’ Enlist corn and soybean traits. This week…

Early Spotty Frost Descends Deep Within… By: 09/16/2014 @ 12:35pm North Dakota and northwestern Minnesota farmers warily watch the chances of frost every…

WinField Launches Three Ag Tech Tools By: 08/20/2014 @ 10:32am Here are three new products from WinField that the firm announced at its Ag Tech Summit held this…

MEDIA CENTERmore +
This container should display a .swf file. If not, you may need to upgrade your Flash player.
Improving Soil Health