Mar 21 Corn closed at $5.4275/bushel, down $0.075 from yesterday's close.  May 21 Wheat closed at $6.555/bushel, down $0.0975 from yesterday's close.  Mar 21 Soybeans closed at $13.7725/bushel, up $0.0225 from yesterday's close.  Mar 21 Soymeal closed at $424.3/short ton, down $1.6 from yesterday's close.  Mar 21 Soyoil closed at 47.55 cents/lb up 0.64 cents from yesterday's close.  Apr 21 Live Cattle closed at $123.675/cwt up $0.75 from yesterday's close.  Mar 21 Feeder Cattle closed at $139.125/cwt up $0.925 from yesterday's close.  Apr 21 Lean Hogs closed at $84.5/cwt down $0.425 from yesterday's close.  Apr 21 WTI Crude Oil closed at $59.06/barrel down $1.47 from yesterday's close. ...