Most of the attention yesterday by the trade press about USDA's July supply and demand report focused on corn. The 20-bushel reduction in USDA's yield estimate for the U.S. corn crop in 2012 to 146 BPA was unexpected by some because of USDA's normal reluctance to make such a large reduction so quickly. However, the cut was fully justified based on the weather thus far in the marketing year and the weather outlook. If anything, the reduction was not great enough as I believe the final yield will be 140 BPA or less. That is when it will really become a serious situation for corn.The tightening of the soybean supply demand situation got less attention yesterday, but in reality the soybean supply/demand balance sheet is even tighter than that...