Sustaining the price uptrends in corn and soybean futures in the early fall will be challenging for the corn and bean bulls. Harvest pressure and related commercial hedge selling will ramp up in the coming weeks, which could limit the upside in corn and soybean futures prices. However, the corn market bulls have shown keen resilience lately, despite knowing a big U.S. corn crop is getting ready to come out of the fields in the coming weeks. The soybean market may now do the same.Key for the corn and soybean ...