Trading is bracketed by bearish crop yields and passable weather on one side, and reasonable demand on the other. The former prevailed today in corn, soy and beef, the latter got the better in wheat and pig meat. White House economic advisor Larry Kudlow said China’s buying looks good, but there was no flash sale today. Instead we had the Pro Farmer crop tour and it is not reporting anything dramatic. Iowa is deathly dry but like the rest of the region, it may get good relief rains later next week. The full report from Pro Farmer should be released tomorrow and it will show that some areas have big yields, some parts of the Belt are underperforming average but are still better than last year. Fundamentally, it will not change the cur...