Agrium (AGU - Get Report) is one of the biggest agricultural retailers in North America, with more than 1,000 locations spread throughout the U.S. and Canada. The firm sells chemicals, seeds, and fertilizers directly to farmers, wholesalers, and gardeners. One of the most attractive attributes of Agrium is the fact that the firm isn't merely a seller -- it's also the third-largest producer of potash in North America, a factor that should bode well for Agrium's margins as fertilizer prices rise.From a macro standpoint there's reason to be bullish on the agriculture business. As growing populations and declining farmland continue to be major themes worldwide, demand for efficiency-improving products (like fertilizers) should continue to strengthen. At the same time, Agrium's push to other regions should help to spawn growth in the next few years. Even though the vast majority of Agrium's revenues are earned in U.S. dollars, the firm's exposure to commodity prices should help to keep shareholders' stakes diversified away from the greenback. This month, management more than tripled its dividend payout, hiking it by 309% to 22.5 cents per share.