Dec 20 Corn closed at $3.2625/bushel, down $0.0375 from yesterday's close.  Sep 20 Wheat closed at $5.3275/bushel, up $0.0925 from yesterday's close.  Nov 20 Soybeans closed at $8.8525/bushel, down $0.0225 from yesterday's close.  Dec 20 Soymeal closed at $295.8/short ton, down $1.7 from yesterday's close.  Dec 20 Soyoil closed at 30.06 cents/lb up 0.14 cents from yesterday's close.  Oct 20 Live Cattle closed at $106.05/cwt up $1.05 from yesterday's close.  Aug 20 Feeder Cattle closed at $141.975/cwt up $1.275 from yesterday's close.  Aug 20 Lean Hogs closed at $53.075/cwt down $1.125 from yesterday's close.  Sep 20 WTI Crude Oil closed at $41.28/barrel up $0.24 from yesterday's close. ...