An ag economist said the USDA’s 2020 corn yield projection
might be too high.
Todd Hubbs at the University of Illinois tells Brownfield
the USDA’s corn trend yield model, which draws a trend line from 1988 to the
present, has a flaw.
“If you move the starting point into the 80’s, it really
starts to increase a lot because we saw numerous crop short falls in the 80’s,”
he said.
1988 was a drought year meaning the trend line started from
a lower yield than normal, causing a higher yearly increase when drawing a line
to today.


