Potash February 18, 2013California, Eastern Cornbelt, Market Watch, Pacific N.W., Potash Muriate, U.S. Gulf, Western Canada, Western Cornbeltmickeybarb@charter.net U.S. Gulf: Potash barges remained in the $425-$430/st FOB range.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.