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

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

                                   FORM 8-K/A
                                 Amendment No. 1

                                 CURRENT REPORT

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

         Date of Report (Date of earliest event reported): June 30, 2004

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

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

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

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






Monsanto  Company (the "Company") is filing this Form 8-K/A to amend its Current
Report on Form 8-K dated and filed with the Securities  and Exchange  Commission
on June 30, 2004 in order to correct information  provided under Items 9 and 12.
Accordingly, Items 9 and 12 are amended as follows.

ITEM 9.  REGULATION FD DISCLOSURE.

     The first  paragraph under Item 9 is hereby amended to read in its entirety
as follows:

     We have updated our historical pro forma financial  information  reflecting
the  classification  of our European  breeding  and seed  business for wheat and
barley and plant-made  pharmaceuticals program as discontinued operations.  This
updated  historical  pro  forma  financial  information  is  attached  hereto as
Exhibits 99.5 and 99.6, is incorporated  by reference  herein and will be posted
to our website.


ITEM 12. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

     The third paragraph under Item 12 is hereby amended to read in its entirety
as follows:

     We have  also  updated  our  historical  pro  forma  financial  information
reflecting  the  classification  of our European  breeding and seed business for
wheat  and  barley  and  plant-made   pharmaceuticals  program  as  discontinued
operations.  This updated historical pro forma financial information is attached
hereto as Exhibits 99.5 and 99.6, is incorporated  by reference  herein and will
be posted to our website.

                                    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:  June 30, 2004
                                MONSANTO COMPANY



                                By:      /s/ Nancy E. Hamilton
                                   ---------------------------------------------
                                   Name:  Nancy E. Hamilton
                                   Assistant Secretary



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