The ag market is drifting. It tried to rally at the opening, but lost steam as the market tries to figure out how to deal with large supplies.

USDA crop production report is out at 11 a.m. central time tomorrow. The trade isn't looking for much change from USDA. His estimates put corn yield at 167.8 bpa and soybeans at 49.1 bpa.

Bryce Knorr will be talking about marketing 2017 crops at Husker Harvest Days in Grand Island, Neb., at 9:30 a.m. Tuesday, Wednesday and Thursday and at 1 p.m. Tuesday and Wednesday.