Jul 21 Corn closed at $6.5675/bushel, down $0.0775 from yesterday's close.  Jul 21 Wheat closed at $6.635/bushel, down $0.1275 from yesterday's close.  Jul 21 Soybeans closed at $15.305/bushel, down $0.065 from yesterday's close.  Jul 21 Soymeal closed at $395.5/short ton, up $5.2 from yesterday's close.  Jul 21 Soyoil closed at 65.79 cents/lb down 1.02 cents from yesterday's close.  Aug 21 Live Cattle closed at $118.6/cwt down $0.825 from yesterday's close.  Aug 21 Feeder Cattle closed at $151.35/cwt down $1.5 from yesterday's close.  Jul 21 Lean Hogs closed at $119.35/cwt up $2.65 from yesterday's close.  Jul 21 WTI Crude Oil closed at $66.59/barrel down $0.26 from yesterday's close. ...