After a month long sell-off that saw Mosaic Company (MOS), Potash Corporation of Saskatchewan (POT), and Monsanto Company (MON) dip from 4-15%, the agricultural chemical companies have rebounded to new highs within the last two weeks. Monsanto is still close to a new high with Mosaic and Potash striking new highs on Wednesday. Corn continues to rally which makes the fertilizers and the seeds required for crop production that much more demanded. Corn is at $7, a new high and the use of crops for fuel is making agriculture follow crude oil in a very strong rally. I like Potash the best of ...