Potash January 19, 2015China, Eastern Cornbelt, Market Watch, Potash Muriate, Southeast, Southern Plains, Sulfate of Potash Magnesia, U.S. Gulf, Western Cornbeltmickeybarb@charter.net U.S. Gulf: Potash barge prices were lower at $360-$365/st FOB,This content is restricted to site members. If you are an existing user, please log in. If you would like to Subscribe please go to the 'Subscribe' area from the main menu.