GENERAL COMMENTS:March corn closed down 3 1/4 cents and May corn was down 2 3/4 cents. March soybeans closed down 9 3/4 cents and May soybeans were down 9 1/2 cents. March KC wheat closed down 11 1/4 cents, March Chicago wheat was down 10 cents, March Minneapolis wheat was down 9 1/4 cents.The U.S.