As Filed with the Securities and Exchange Commission on September 21, 2005


                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                        ---------------------------------

                                    FORM 8-K

                                 CURRENT REPORT
                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

      Date of Report (Date of earliest event reported): September 21, 2005

                                MONSANTO COMPANY
             (Exact Name of Registrant as Specified in its Charter)

      Delaware                      001-16167                   43-1878297
(State of Incorporation)     (Commission File Number)      (IRS Employer
                                                             Identification No.)

                          800 North Lindbergh Boulevard
                            St. Louis, Missouri 63167
               (Address of Principal Executive Offices) (Zip Code)

       Registrant's telephone number, including area code: (314) 694-1000

                                 Not Applicable
          (Former Name or Former Address, If Changed Since Last Report)
                        ---------------------------------

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligations under any of the following
provisions (see General Instruction A.2. below):

[    ] Written communications  pursuant to Rule 425 under the Securities Act (17
     CFR 230.425)

[    ]  Soliciting  material  pursuant to Rule 14a-12 under the Exchange Act (17
     CFR 240.14a-12)

[    ]  Pre-commencement  communications  pursuant  to Rule  14d-2(b)  under the
     Exchange Act (17 CFR 240.14d.-2(b))

[    ]  Pre-commencement  communications  pursuant  to Rule  13a-4(c)  under the
     Exchange Act (17 CFR 240.13e-4(c))




ITEM 2.02.  RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

     On September 21, 2005,  Monsanto Company issued a press release  confirming
its fiscal year 2005  earnings  per share  guidance and updating its fiscal year
2005 free cash flow guidance. This press release is furnished as Exhibit 99, and
incorporated herein by reference.

     The press release furnished herewith uses the non-GAAP financial measure of
earnings  per share  ("EPS") on an ongoing  basis.  Our  ongoing  EPS  financial
measure excludes certain after-tax items that we do not consider part of ongoing
operations, which are identified as such in the reconciliation.  We believe that
our ongoing EPS financial measure presented with these adjustments best reflects
our ongoing performance and business operations during the periods presented and
is more useful to investors for comparative  purposes.  In addition,  management
uses  the  ongoing  EPS  financial  measure  as a  guide  in its  budgeting  and
long-range  planning  processes,   and  as  a  guide  in  determining  incentive
compensation.  The  presentation  of EPS on an  ongoing  basis  is  intended  to
supplement investors' understanding of our operating performance.  This non-GAAP
financial  measure  may not be  comparable  to  similar  measures  used by other
companies.

     We are furnishing the information  contained in this report,  including the
Exhibit,  pursuant to "Item 2.02 Results of Operations and Financial  Condition"
of Form 8-K promulgated by the Securities and Exchange Commission ("SEC").  This
information  shall not be deemed to be "filed" for the purposes of Section 18 of
the Securities Exchange Act of 1934 ("Exchange Act") or otherwise subject to the
liabilities of that section, unless we specifically  incorporate it by reference
in a document  filed under the  Securities  Act of 1933 or the Exchange  Act. By
filing  this  report on Form 8-K and  furnishing  this  information,  we make no
admission as to the materiality of any information in this report, including the
Exhibit.

ITEM 9.01.        FINANCIAL STATEMENTS AND EXHIBITS.

(c)  Exhibits

     The following exhibit is filed herewith:

     Exhibit 99     Press Release,dated September 21, 2005, issued by Monsanto
                    Company

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                                    SIGNATURE

     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
Registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.

Dated:  September 21, 2005
                                MONSANTO COMPANY


                                By:  /s/ Jennifer L. Woods
                                   --------------------------------------------
                                   Name:  Jennifer L. Woods
                                   Title:   Assistant Secretary

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                                  EXHIBIT INDEX


Exhibit No.    Description of Exhibit
----------     ----------------------

Exhibit 99     Press Release, dated September 21, 2005, issued by Monsanto
               Company



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