USDA yesterday released its annual updated long-term projections for U.S. production and global trade of all major commodities. The projections are in many respects an exercise of futility, since it is almost assured the projections will not be accurate because of the vagaries of weather and technology. Nevertheless, they do serve a useful purpose in providing some sense of what the future may hold.There are a few things in USDA's soybean projections that are questionable. Among these are the following: Soybean Yields Versus Corn Yields USDA's long-term projections call for average U.S. corn yields to grow faster than average soybean yields. The data forecast average U.S. corn yields being 3.73 times the average soybean yield in 2018-22...