According to the official reports, prices closed lower Monday on the Chicago Board of Trade as equity markets were negative most of the day and the dollar index was close to flat.

Corn was off 6 to off 7, soybeans were off 9 3/4 to off 12 1/2, wheat was off 2 to off 2 1/2 and oats were off 5.

With the dollar index up 0.07 percent and oil prices falling, corn prices dropped for the third consecutive trading session.

Favorable crop conditions put pressure on wheat prices, the U. S. Department of Agriculture reporting Monday 79 percent of the spring wheat crop planted and 52 percent of the winter wheat crop headed out.

The USDA said on Monday that soybean planting is 38 percent completed, short of trader expectations by 2 percentage points. (With inputs from Agencies)