Corn is falling after weekly export sales failed to meet expectations, adding to concern that slowing global growth will hurt demand.
May corn dropped 16 cents, or 2.4 percent, to close at $6.445 a bushel Thursday.
While the government reported that demand for corn jumped from the previous week, it was still short of analysts' forecasts, said Mike Zuzolo, president of Global Commodity Analytics and Consulting.
In other agricultural futures trading, wheat edged lower and soybeans rose.
Wheat for May fell 0.5 cents, or 0.1 percent, to $7.0675 a bushel. Soybeans rose 8.25 cents, or 0.6 percent, to $14.3050.
Metals were mixed. Gold, copper, and palladium rose, while silver and platinum fell.