POWER OF ATTORNEY

Know all by these presents, that the undersigned hereby constitutes and appoints
each of Mary K. W. Jones, Todd E. Davies, Paul Wilczynski, and Julie M. Rosales
signing singly, the undersigned's true and lawful attorney-in-fact to:

1. execute for and on behalf of the undersigned, in the undersigned's
capacity as an officer of Deere & Company (the "Company"), Forms 3, 4 and 5
in accordance with Section 16(a) of the Securities Exchange Act of 1934
and the rules thereunder and Form 144 in accordance with Rule 144 under
the Securities Act of 1933;

2. do and perform any and all act for and on behalf of the undersigned which
may be necessary or desirable to complete and execute any such Form 3, 4, 5
and/or 144, complete and execute any amendment or amendments thereto, and
timely file such form with the United States Securities and Exchange
Commission and any stock exchange or similar authority; and

3. take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit
to, in the best interest of, or legally required by, the undersigned, it
being understood that the documents executed by such attorney-in-fact on
behalf of the undersigned pursuant to this Power of Attorney shall be in such
form and shall contain such terms and conditions as such attorney-in-fact may
approve in such attorney-in-fact's discretion.

The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might
or could do if personally present, with full power of substitution or
revocation, hereby ratifying and confirming all that such attorney-in-fact,
or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause
to be done by virtue of this power of attorney and the rights and powers herein
granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are not assuming,
nor is the Company assuming, any of the undersigned's responsibilities to comply
with Section 16 of the Securities Exchange Act of 1934, or Rule 144 of the
Securities Act of 1933.

This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, 5 and 144 with respect to
the undersigned's holdings of and transactions in securities issued by the
Company, unless earlier revoked by the undersigned in a signed writing
delivered to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 30th day of March, 2020.


/s/ Tami A. Erwin
Signature

Tami A. Erwin
Print Name