This is an article on gold going to $4,500/oz but within it you...

This is an article on gold going to $4,500/oz but within it you can click on a video IV with BHP CEO. when asked which are BHP's preferred commodities and future projects he mentions Potash 3x!!
Note how he reckons supply of several commodities eg. iron ore have expanded rapidly and will soon meet/exceed demand... but the opposite has happened in potash. very encouraging imo.

http://www.marketwatch.com/story/is-gold-heading-to-4500-2012-08-23?link=MW_story_investinginsight