Good Ky. corn yields expected despite N losses
Corn in most fields across Kentucky displayed nitrogen (N) deficiency before black layer was reached. Those losses were expected this season as we experienced more rain.
Normally, we expect yield losses to occur when the corn crop runs low on N before the seeds are done developing on the cob.
However, walking some of these fields reveals that corn yields should be very good despite the apparent lack of N.
The corn ears in the image above have kernel fill to the tip. Kernel set appears uniform and the kernels have good depth. A lack of N did not hinder these key components for yield. The lack of N could reduce kernel test weight. But, all things considered, the corn in this field should have minimal losses from the lack of N.
The temptation from this season will be to apply more N next season. Much of the N loss in Kentucky this season was from saturated soils where the nitrogen forms in fertilizer were converted to nitrogen gas (N2) and lost to the atmosphere.
There are options to better manage against that risk without necessarily applying more N fertilizer. More will come later about managing next year’s corn crop and N considerations.
For now, let’s be thankful that corn crop looks relatively good despite N losses.
- Unmanned aerial vehicles advance agriculture
- Divergent livestock futures highlighted Wednesday's market action
- Update on corn and soybean acreage
- China's cotton growing area, yield expected to decline in 2014
- Farm auction in McLean County, Ill., drew 40 bidders
- Pesticide Safety Education program reaches a 50-year milestone
- U.S. GMO labeling foes triple spending in first half of this year
- Activists fighting Golden Rice even more in 2014
- Source shows half of GMO research is independent
- White House issues veto threat on bill to block WOTUS rule
- Stoller soybean research produces 214 bushels per acre
- EPA regional head and ag leaders talk water quality