IEM Daily Feature
Wednesday, 16 July 2014
Wednesday, 16 July 2014
Wettest Month and Corn Yield
Posted: 16 Jul 2014 05:43 AM
There is some current talk in the news about US corn yield projections and Iowa pulling
down the average due to the very wet June in the state. Does having a really wet month
during the growing season lead to significant reductions in corn yield? The featured chart
attempts to look into this using USDA NASS corn yield compared with the largest
precipitation departure month for that year. The yield departures are computed by
comparing with the current trend analysis as corn yields have increased thanks to better
management practices, genetics, etc. Of course, there is no magic weather metric that
directly provides corn yield, but having a wet month certainly appears to limit the upside
potential. The dashed line shows where 2014 could potentially appear on this plot.
Voting:
Good = 8
Bad = 2
Abstain = 3
Tags: corn
Voting:
Good = 8
Bad = 2
Abstain = 3
Tags: corn