Chicago Board of Trade corn and wheat futures fell early Wednesday as traders locked in profits from a sharp rally earlier this week, traders said. Soybean futures also fell, weighed down by a 2 percent drop in the crude oil market. At 9:35 am CDT (1435 GMT), CBOT December corn was down 6 cents at $7.09-3/4 per bushel, with CBOT September wheat dropping 7-1/2 cents to $7.10-1/2 and CBOT November soybeans falling 8 cents to $13.71-3/4.