It is no longer profitable to plant corn with prices less than $3.00 a bushel across the northern Corn Belt, and we could be on the cusp of a significant acreage shift in 2015. It was notable that reports from Brazil this week indicated the country's farmers will likely reduce corn plantings by as much as 10 percent this season.It's been a relatively quiet week in the trade with little to talk about except the results of the Pro Farmer Crop Tour across the Corn Belt. Those results didn't surprise anyone either with rather superb crop expectations. My personal crop tour consisted of flying from Fargo to Atlanta on a clear day this week. The entire U.S. that I flew over looked lush even from 35,000 feet. There are, however, a few things to co...