Exhibit 32.1

Certification Pursuant to 18 U.S.C. Section 1350 as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Annual Report of Terra Industries Inc. (the Company) on Form 10-K/A for the period ending December 31, 2008 as filed with the Securities and Exchange Commission on the date hereof (the Report), the undersigned Chief Executive Officer of the Company hereby certifies, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002 that based on his best knowledge:

1)	The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and
2)	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of and for the periods covered in the Report.

/s/ MICHAEL L. BENNETT  

Michael L. Bennett 

President and Chief Executive Officer and Director (Principal Executive Officer)

Dated: April 28, 2009 

The certification set forth above is being furnished as an exhibit solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and is not being filed as part of Form 10-K/A or as a separate disclosure document of the Company or the certifying officers.