PotashCorp (NYSE:POT) investors need to fasten their seat belts: The fertilizer giant is all set to report its quarterly earnings on July 30. Expectations are low, with analysts projecting the company to earn $0.51 per share, roughly 9% lower year over year, on flat revenue.

But top- and bottom-line numbers aren't why this earnings report will matter to shareholders, because aside from numbers, it'll likely carry some crucial updates that could move the stock big. Take a look at the slideshow below to know more about three such updates that you can't miss in PotashCorp's upcoming earnings report.