USDA will update its crop production and ending supply estimates Wednesday morning. Obviously, these are very important numbers because it is very likely that corn and soybean yields and harvested acres have both declined since August. That will mean USDA once again will have adjust demand lower to maintain any semblance of minimal ending supplies. The tables below show the trade's expectations with comparisons to the August numbers.There is little disagreement among private analysts that USDA will have to lower the corn yield and the harvested acres number. The corn crop is mature and harvest is already between 6-8 percent complete, which should mean USDA can achieve a very accurate yield estimate. Harvest reports continue to be universa...