Photo credit: Flickr/bark 

It's estimated that over the next 50 years farmers must produce more food than they've produced in the past 10,000 years. A worrisome combination of a growing global population, a rising middle class, and less arable land is behind this growing need to produce more food. It makes one wonder how are we going to feed everybody. That said, this is a massive opportunity for fertilizer producers like PotashCorp (NYSE:POT), Mosaic (NYSE:MOS), and Agrium (NYSE:AGU).

That opportunity also awaits savvy investors. Those aware of this trend can follow the simple strategy of investing in a fertilizer producer, which is a strategy that will make these investors virtually immune to any food inflation caused by our need to grow more food. That's because these investors can hedge that inflation by profiting alongside these stocks. To help investors gain a better understanding of the trends facing our food supplies I created the below slide show. It also details how PotashCorp, Mosaic and Agrium are positioned to profit from these trends.