Thursday, July 7, 2016

Evaluaton of Corn Recovery after Wind Event and Estimated Yield Loss

On June 22, 2016, Illinois had a strong wind storm blow through the middle part of the state.  You may have been one of the farmers who got hit by this monstrosity. Burrus Account Manager, Rick Urish documented how one of the Burrus Hybrid fields overcame Mother Nature. Remember there can be difference between hybrids, as some react differently after root lodging, depending on the environment. 

Picture 1 taken by Burrus Account Manager, Rick Urish
Picture 1 was taken the morning after the storm, where you can see that the corn has lodged.  The stalk has not snapped, so it can make a recovery.  After evaluation of the roots, only some of the brace root material was exposed.  Since none of the fibrous roots were exposed, these plants are expected to readily correct themselves and yield loss should be minimal since the plant has not reached the R1 (silking) growth stage.

Picture 2 taken by Burrus Account Manager, Rick Urish
In picture 2 you can see that on the second day after the storm, the corn is already starting to move upwards. This is a good sign! The corn is quickly returning to a vertical growth pattern.   

Picture 3 taken by Burrus Account Manager, Rick Urish
Day five brings exciting news to farmers! In picture 3, additional brace roots are forming at the base of the stalk to anchor plant to the ground.

Picture 4 taken by Burrus Account Manager, Rick Urish


On day nine, observed in picture 4, the corn plant continues to move upward and has even more brace roots forming! Even though it looks like all hope may be lost, you need to stay patient and let nature take its course for a few days. After these roots are firmly in the ground, the corn is sure to make a full recovery with minimal yield loss; however, harvesting may be slower and there could be a potential for ear loss.  (Maggie Prather, Burrus Agronomic Intern)




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