Mar 20 Corn closed at $3.7775/bushel, down $0.0175 from yesterday's close.  Mar 20 Wheat closed at $5.4275/bushel, down $0.015 from yesterday's close.  Mar 20 Soybeans closed at $8.9375/bushel, down $0.025 from yesterday's close.  Mar 20 Soymeal closed at $291.1/short ton, down $0.8 from yesterday's close.  Mar 20 Soyoil closed at 30.57 cents/lb down 0.15 cents from yesterday's close.  Apr 20 Live Cattle closed at $120.325/cwt up $1.8 from yesterday's close.  Mar 20 Feeder Cattle closed at $138.525/cwt up $2.2 from yesterday's close.  Apr 20 Lean Hogs closed at $64.3/cwt up $0.225 from yesterday's close.  Mar 20 WTI Crude Oil closed at $52.08/barrel up $0.66 from yesterday's close.  &nbs...