GENERAL COMMENTS:December corn closed down 2 3/4 cents and March corn was down 3 1/4 cents. November soybeans closed down 9 1/4 cents and March soybeans were down 11 1/2 cents. December KC wheat closed down 6 1/2 cents, December Chicago wheat was down 4 3/4 cents and December Minneapolis wheat was down 4 1/2 cents.The U.S.