After Wednesday’s WASDE-induced selloff, the CBOT started lower in tentative trade overnight but that move quickly found support and markets turned higher early in the day session. The seeming catalyst was the realization that USDA’s July corn and soybean yield estimates are still far from certain and, as will be discussed in more detail later, are under increased threat from the current weather outlook. Consequently, traders are no longer as convinced that the larger carry-out implications of the July WASDE will remain true in September and October. That created a strong bit of short covering and some cautious long buying, with funds emerging on the long side of the market again. Also looming in the back of the market’s m...