Sep 20 Corn closed at $3.435/bushel, down $0.07 from yesterday's close.  Sep 20 Wheat closed at $4.92/bushel, down $0.0675 from yesterday's close.  Nov 20 Soybeans closed at $8.9675/bushel, down $0.0225 from yesterday's close.  Dec 20 Soymeal closed at $304.2/short ton, down $0.4 from yesterday's close.  Dec 20 Soyoil closed at 28.75 cents/lb down 0.26 cents from yesterday's close.  Aug 20 Live Cattle closed at $99.4/cwt up $2.1 from yesterday's close.  Aug 20 Feeder Cattle closed at $134.875/cwt up $1.8 from yesterday's close.  Aug 20 Lean Hogs closed at $49.2/cwt up $0.125 from yesterday's close.  Aug 20 WTI Crude Oil closed at $40.3/barrel up $0.48 from yesterday's close.   ...