Jul 21 Corn closed at $6.7925/bushel, down $0.035 from yesterday's close.  Jul 21 Wheat closed at $6.8/bushel, down $0.0775 from yesterday's close.  Jul 21 Soybeans closed at $15.6025/bushel, down $0.235 from yesterday's close.  Jul 21 Soymeal closed at $386.9/short ton, down $9.3 from yesterday's close.  Jul 21 Soyoil closed at 70.83 cents/lb down 0.51 cents from yesterday's close.  Aug 21 Live Cattle closed at $117.775/cwt down $0.3 from yesterday's close.  Aug 21 Feeder Cattle closed at $150.2/cwt up $0.275 from yesterday's close.  Jul 21 Lean Hogs closed at $122.1/cwt up $1.5 from yesterday's close.  Jul 21 WTI Crude Oil closed at $69.22/barrel down $0.4 from yesterday's close.  &nbs...