Market Watch February 21, 2011Ammonia, Eastern Cornbelt, Market Watch, Middle East, Northern Plains, U.S. Gulf, Urea, Western Cornbeltthoughton8@bloomberg.net AMMONIA U.S. Gulf/Tampa: While some said it was too earlyThis 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.