In 2011, total global exports of nitrogenous fertilisers reached a record value of $25.7bn, having grown by 60.6% in value between 2009 and 2011. The main exporter is Russia, which exported 11m tonnes of fertilisers in 2011. Urea is the most commonly used nitrogenous fertiliser, and in a context of a growing international demand for fertilisers, the...