Document:

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Exhibit 4.3

                        Sims Agricultural Products Co.
                              an Ohio corporation

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

                  Non-Negotiable Subordinated Promissory Note

Date: June 21, 1999                                         $5,000.00

      Sims Agricultural Products Co., an Ohio profit corporation ("Company"),
for value received, hereby promises to pay to Thomas H. Cunningham, an
individual residing at 975 Taylor Road, Mansfield, Ohio 44903 ("Holder") the
principal sum of Five Thousand and 00/100 Dollars, plus interest under this
Note, on or before June 30, 2002, at the office of the Company at 3795 County
Rd. 29, Mt. Gilead, Ohio.

      This Note evidences an indebtedness of $5,000.00 and the following is a
statement of the rights of the Holder of this Note and the conditions to which
this Note is subject, to all of which the Holder, by the acceptance of this
Note, assents:

      1. Subordination. The rights of the Holder to the principal sum or any
part thereof, or interest thereon, are and shall remain subject and subordinate
to all "senior indebtedness", defined to mean the principal of and premium, if
any, and interest, now or hereafter owing, on the following, whether outstanding
on the date of issuance of this Note or thereafter incurred or created (see
subordination agreement with National City Bank):

         (a) Any and all promissory notes or other evidences of indebtedness
      of the Company to National City Bank, including but not limited to the
      following: (i) Demand Line of Credit/Prime dated November 6, 1997, in the
      original principal amount of $4,500,000; (ii) Commercial Installment Note
      dated January 12, 1996, in the original principal amount of $610,000;
      (iii) Replacement Promissory Note dated January 12, 1996, in the original
      principal amount of $645,286.20, (iv) Commercial Note: Term Multiple
      Advance/Prime dated March 14, 1997, in the original principal amount of
      $500,000; and (v) Commercial Installment Note dated November 21, 1997, in
      the original principal amount of $300,000.

         (b) indebtedness or obligations of the Company under any written
      contract or commitment;

         (c) renewals, extension or refunding if any of the indebtedness or
      obligations referred to in the preceding clauses (a) and (b).

         (d) This note is not subordinated to the notes to Ross Strayer and
      Dallas Paul for $375,050 each. Those notes are subordinated to this note.

      2. Interest. Company must pay interest on the outstanding principal
balance of this Note from June 21, 1999 at the rate of twelve percent (12%) per
annum. Interest is calculated on the basis of a 360-day year, and is payable
monthly on the last day of each month commencing

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July 30, 1999 through June 30, 2002. Interest is payable by mail to the
registered address of the Holder hereof or by wire according to Holder's
instructions.

      If any interest payment is past due and remains unpaid more than thirty
(30) days from its initial due date, the Company must issue to the Holder a
warrant entitling the Holder to purchase, at $0.01 per share, one (1) share of
the common stock of the Company for every $1.00 of that month's past due and
unpaid interest. The warrants will expire June 30, 2006 and are subject to the
additional terms and provisions set forth in the Warrant Plan and Warrant
Certificate attached hereto as "Exhibit A."

      3. Prepayment. The Company may prepay the principal hereunder at any time,
in whole or in part, without premium or penalty thereon. Unless Company
designates to the contrary in writing at the time of any prepayment, the
prepayment will be applied first to principal, then to interest under this Note.

      4. Nonrecourse. This Note is the obligation of the Company only, and no
recourse may be had for the payment thereof against any shareholder, officer, or
director of the Company, directly or through the Company, by virtue of any
statute for the enforcement of any assessments or otherwise, all such liability
of shareholders, directors and officers as such being released by the Holder
hereof by the acceptance of this Note.

      5. Remedies. Nothing contained in this Note shall impair, as between the
Company, the Company's creditors other than the Holders of indebtedness to which
this Note is subordinated, and the Holder of this Note, the obligation of the
Company, which is absolute and unconditional, to pay the Holder of this Note the
principal of, and premium, if any, on this Note, as and when due and payable in
accordance with its terms, nor shall anything in this Note prevent the Holder of
this Note from exercising all remedies otherwise permitted by law upon the
occurrence of any event of default, subject to the rights, if any, of the
Holders of indebtedness to which this Note is subordinated, upon the exercise of
any such remedy.

      6. Default. If any of the following events occur, which shall be referred
to as an event of default, the entire unpaid principal and accrued interest
hereon shall become immediately due and payable:

            (a) default in the payment of principal of the Note at maturity;

            (b) the liquidation or dissolution of the Company;

            (c) entry of a decree or order adjudging the Company bankrupt or
      insolvent, or approving a petition seeking reorganization, arrangement,
      adjustment or composition under the Federal Bankruptcy Act or any other
      applicable federal or state law, or appointing a receiver, liquidator,
      assignee, trustee or other similar official of the Company or of any
      substantial part of its property or ordering the winding up or liquidation
      of its affairs and the continuance of any such decree or order in effect
      for a period of sixty consecutive days; or

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            (d) the institution by the Company of proceedings to be adjudicated
      a bankrupt or insolvent, or the consent by it to the institution of such
      proceedings or the filing of a petition or answer or consent seeking
      reorganization or release under the Federal Bankruptcy Act or any other
      applicable federal or state law, or the consent by the Company to the
      filing of any such petition or to the appointment of a receiver,
      liquidator, assignee, trustee or other similar official of the Company or
      of any substantial part of its property;

            (e) the making by the Company of an assignment for the benefit of
      creditors, or the admission by the Company in writing of its inability to
      pay its debts generally as they become due, or the taking of corporate
      action by the Company in furtherance of any such action.

      In the event of default under Section 6(a), the Company also must issue to
the Holder three (3) warrants, each of which entitles the Holder to purchase, at
$0.01 per share, one (1) share of the common stock of the Company for every
$1.00 of principal which is due but unpaid on the maturity date. The warrants
will expire June 30, 2006 and are subject to the additional terms and provisions
set forth in the Warrant Plan and Warrant Certificate attached hereto as
"Exhibit A."

      7. Waivers. Company and all persons now or hereafter liable for the
payment of the principal or interest due on this Note or any part thereof do
expressly waive presentment for payment, notice of dishonor, protest, notice of
protest, nonpayment and diligence in bringing suit, and, in exercising any right
hereunder, shall be deemed to have waived such rights under this Note.

      8. Consents. Company and all persons now or hereafter liable for the
payment of the principal due on the Note or any part thereof consent that the
time of payment may be extended from time to time by Holder without notice and
without effect on any of the Holder's rights hereunder.

      9. Severability. If any provision of this Note is declared illegal,
invalid, unreasonable or unenforceable, such provision will be deemed canceled
to the same extent as though it never had appeared herein, but the remaining
provisions shall not be affected thereby.

      10. Notices. Any notice to Company or Holder provided for in this Note
must be given by mailing such notice to Company or Holder, as the case may be,
at the address designated above, or at such other address as may be designated
in writing by one party to the other.

      11. Amendment. This Note may be amended only by a writing signed by both
parties.

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      12. Applicable Law and Forum. This Note shall be construed under the laws
of the State of Ohio. Any action or proceeding arising out of or in connection
with this Note shall be instituted in the courts within the State of Ohio.

      13. Non-negotiability. The holder hereof may not sell, assign, pledge,
hypothecate, convey or otherwise transfer this Note or any of its rights
hereunder without the prior written consent of the Company.

      IN WITNESS WHEREOF, the Company has signed this Note on June 21, 1999.

                                    Sims Agricultural Products Co.

                                    -----------------------------------
                                    By:  Dallas H. Paul, President

ATTEST:

---------------------------------
Thomas H. Cunningham, Secretary

THIS NOTE WAS ISSUED ON , 1999, WITHOUT REGISTRATION UNDER THE SECURITIES ACT OF
1933, AS AMENDED, ("THE ACT") IN RELIANCE UPON THE EXEMPTION FROM REGISTRATION
CONTAINED IN SECTION 4(2) AND/OR REGULATION D, RULE 506 PROMULGATED THEREUNDER,
AND/OR SECTION 4(6) AND/OR SECTION 3(B) AND REGULATION D, RULE 504 PROMULGATED
THEREUNDER, AND STATE SECURITIES LAWS. NO TRANSFER OR ASSIGNMENT OF THIS NOTE OF
OR ANY INTEREST THEREIN MAY BE MADE EXCEPT WITH THE PRIOR WRITTEN CONSENT OF THE
COMPANY AND PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE ACT,
UNLESS THE ISSUER HAS RECEIVED AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY
THAT SUCH TRANSFER OR ASSIGNMENT DOES NOT REQUIRE REGISTRATION UNDER THE ACT AND
STATE SECURITIES LAWS.

                                       4<PAGE>
Exhibit 4.4
                                WARRANT AGREEMENT

      This Warrant Agreement ("Agreement") effective the 21st day of June,
1999 is entered into by and between SIMS AGRICULTURAL PRODUCTS CO., an Ohio
corporation, (hereinafter referred to as the "Company") and Thomas H. Cunningham
("Holder").

                              W I T N E S S E T H:

      WHEREAS, as of the effective date of this Agreement, the Company is
authorized to issue Four Million (4,000,000) shares of common stock on such
terms, conditions and provisions as the Board of Directors of the Company may
from time to time determine; and

      WHEREAS, the Board of Directors has authorized the Company to issue
5,000 warrants to purchase common shares of the Company to Holder
pursuant to a Subscription Agreement effective June 21, 1999, (the "Agreement"),
which Agreement is expressly incorporated herein by reference.

      NOW, THEREFORE, pursuant to the applicable laws of the State of Ohio, the
parties hereto hereby agree as follows:

      1. Redeemable Nontransferable Common Stock Purchase Warrant. The Company
shall issue to Holder, in accordance with the Agreement, 5,000 Common Share
Purchase Warrants (hereinafter referred to as "Warrants"). The Warrants
shall be evidenced by a Warrant Certificate in the form attached hereto as
Exhibit A, the terms and provisions of which are expressly incorporated herein
by reference. Holder may not transfer, assign, pledge or hypothecate any Warrant
without the prior written consent of the Company.

      2. Declared Value. The declared value of each Warrant shall be One Cent
($.01).

      3. Exercise Price. The exercise price of the Warrants shall be One Cent
($0.01).

      4. Par Value. Each common share issuable upon exercise of the Warrants
shall have no par value.

      5. Warrant Rights. No Warrant Holder as such, shall be able to vote or
receive dividends or be deemed the Holder of shares of common stock for any
purpose, nor shall anything contained in any Warrant Certificate be construed to
confer upon any Warrant Holder, as such, any of the rights of the shareholder of
the Company or any right to vote, give or withhold consent to any action by the
Company (whether upon recapitalization, issuance of stock, reclassification of
stock, consolidation, merger, conveyance or otherwise), receive notice of
meetings or other actions affecting shareholders, receive dividends or
subscription rights or otherwise, until such Warrants shall have been exercised
and the shares of common stock purchasable upon the exercise thereof, shall
become deliverable as provided in this Warrant Agreement.

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      If any Warrant Certificate is lost, stolen, mutilated or destroyed, the
Company may, on such terms as to such indemnification or otherwise as it may, in
its discretion, impose (which shall, in the case of a mutilated Warrant
Certificate, include the surrender thereof), issue a new Warrant Certificate of
like denomination and tenor as, and in substitution for, the Warrant Certificate
so lost, stolen, mutilated or destroyed.

      6. Warrant Exercise. The Warrants may not be exercised until after June
30, 2000. Thereafter, the Warrants are exercisable as follows: 1,667 Warrants
are exercisable at any time after June 30, 2000; 1,666 Warrants are exercisable
at any time after June 30, 2001; and 1,666 Warrants are exercisable at any time
after June 30, 2002. All of the Warrants expire June 30, 2006. The Warrant
Holder may exercise a Warrant, in whole or in part, by surrendering the Warrant
Certificate, with the subscription form thereon duly executed, to the Company or
its Warrant Agent if any, at the appropriate corporate office, together with the
exercise price for each share of common stock to be purchased, payable in lawful
money of the United States, or by certified check, bank draft or postal or
express money order payable in United States dollars to the order of the
Company. All common shares issued upon the exercise of the Warrants shall be,
upon receipt by the Company of payment therefor, validly issued and outstanding
and fully paid and nonassessable. In case any Warrant Holder shall exercise his
Warrant with respect to less than all of the shares of common stock that may be
purchased under such Warrant, a new Warrant Certificate, continuing on the same
terms as the exercised Warrant Certificate except as to the number of shares
subject to purchase thereunder, shall be countersigned and delivered to or upon
the order of said Warrant Holder.

      7. Adjustment of Shares of Common Stock Purchasable or of Warrant Price.
The number of Common Shares purchasable or the Warrant Price, or both, are
subject to adjustment from time to time as follows:

            (a) In case the Company shall at any time split, reverse split,
      subdivide or combine its outstanding common shares, by reclassification or
      otherwise, the Warrant Price or the number of Shares purchasable upon
      exercise thereof, or both, then in effect shall be proportionately
      decreased or increased, as the case may be, effective simultaneously with
      the effective date of such split, reverse split, subdivision or
      combination. The Company shall have the option of choosing either an
      adjustment in the Warrant Price or the number of Shares purchasable upon
      exercise of a Warrant, or a combination of the two. A dividend in the form
      of common stock shall be considered a subdivision of shares for the
      purposes of this paragraph.

            (b) In case of any capital reorganization or of any reclassification
      of the common shares of the Company, the Company shall execute an
      amendment to this Agreement, providing that the Warrants shall, upon such
      capital reorganization or reclassification, evidence the right to purchase
      the number of shares of stock or other securities or property of the
      Company to which the common shares issuable (at the time of such capital
      reorganization or reclassification of common stock) upon exercise of the
      Warrants would have been entitled upon such capital reorganization or
      reclassification of common shares; and in any such case, if necessary, the
      provisions set forth herein

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      with respect to the rights and interests thereafter of the Warrant Holder
      shall be appropriately adjusted so as to be applicable, as nearly as may
      reasonably be, to any shares of stock or other securities or property
      thereafter deliverable on the exercise of the Warrants. Any such
      adjustment which shall be approved by the Board of Directors of the
      Company shall for all purposes of this Section 7 conclusively be deemed to
      be an appropriate adjustment.

            (c) Anything in this Section 7 to the contrary notwithstanding, the
      Company shall not be required, except as hereinafter provided, to make any
      adjustment of the Warrant Price in any case in which the amount by which
      such Warrant Price would be reduced in accordance with the foregoing
      provisions would be less than $.10, but in such case any adjustment that
      would otherwise be required then to be made will be carried forward and
      made at the time and together with the next subsequent adjustment which,
      together with any and all such adjustments so carried forward, shall
      amount to not less than $.10, provided, however, that adjustments in the
      Warrant Price shall be required and made in accordance with the provisions
      of this Section 7 (other than this subparagraph c) not later than such
      time as may be required in order to preserve the tax-free nature of any
      distribution (within the meaning of Section 305 of the United States
      Internal Revenue Code of 1986, as amended) to the Warrant Holder or the
      holders of common stock. In the event of any split, reverse split,
      subdivision or combination of shares of common stock, the $.10 referenced
      in this paragraph (as theretofore decreased or increased) shall be
      proportionately decreased or increased.

            (d) Upon each adjustment of the Warrant Price pursuant to
      subparagraphs (a), (b) and (c) of this Section 7, the number of common
      shares specified in each Warrant Certificate shall thereupon evidence the
      right to purchase that number of common shares (calculated to the nearest
      hundredth of a common share) obtained by multiplying the number of common
      shares purchasable immediately prior to such adjustment upon exercise of
      such Warrant by the Warrant Price in effect immediately prior to such
      adjustment and dividing the product so obtained by the Warrant Price in
      effect after such adjustment.

            (e) Whenever the Warrant Price or the number of common shares
      issuable upon the exercise of a Warrant shall be adjusted as herein
      provided:

                  (i) the Company shall compute the adjusted Warrant Price or
            the adjusted number of common shares in accordance with such
            provisions and shall prepare a certificate signed by its President,
            and any Vice President, Treasurer or Secretary, setting forth the
            adjusted Warrant Price or the adjusted number of shares of common
            stock issuable upon the exercise of a Warrant and showing in
            reasonable detail the facts upon which such adjustments are based;

                  (ii) the Company shall cause to be mailed to the Warrant
            Holder in accordance with the provisions of Section 11 hereof a
            notice stating that the Warrant Price or the number of shares of
            common stock purchasable upon

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            exercise of the Warrants, or both, have been adjusted and setting
            forth the adjusted Warrant Price or the adjusted number of shares of
            common stock purchasable upon the exercise of a Warrant.

            (f) In case at any time after the date of this Agreement:

                  (i) the Company shall declare a dividend (or any other
            distribution) on its common stock payable otherwise than in cash out
            of its undistributed net income;

                  (ii) the Company shall authorize the grant to the holders of
            its common shares of rights to subscribe for or purchase any shares
            of any class or of any other rights;

                  (iii) there shall be any reclassification of the common shares
            (other than a split, reverse split, subdivision or combination of
            its outstanding common shares);

                  (iv) there shall be a voluntary or involuntary dissolution,
            liquidation or winding up of the Company;

      then the Company shall cause to be mailed to the Warrant Holder in
      accordance with the provisions of Section 11 hereof, at least 20 days
      prior to the applicable record date hereinafter specified, a notice
      stating (x) the date on which a record is to be taken for the purpose of
      such dividend, distribution or rights, or, if a record is not to be taken,
      the date as of which the holders of common shares of record to be entitled
      to such dividend, distribution or rights are to be determined, or (y) the
      date on which such reclassification, dissolution, liquidation or winding
      up is expected to become effective, and the date as of which it is
      expected that holders of common shares of record shall be entitled to
      exchange their common shares for securities or other property deliverable
      upon such reclassification, dissolution, liquidation or winding up.

            (g) The form of Warrant Certificate need not be changed because of
      any change in the Warrant Price or in the number of common shares
      purchasable upon the exercise of a Warrant pursuant to this Section 7 and
      Warrant Certificates issued after such change may state the same Warrant
      Price and the same number of common shares as are stated in the Warrant
      Certificates initially issued pursuant to this Agreement. However, the
      Company may at any time in its sole discretion (which shall be conclusive)
      make any change in the form of Warrant Certificate that it may deem
      appropriate that does not affect the substance thereof, and any Warrant
      Certificate thereafter issued or countersigned, whether in exchange or
      substitution for an outstanding Warrant Certificate or otherwise, may be
      in the form as so changed.

      8. Issuance of Shares Upon Exercise of Warrants. The issuance of shares
and any offer to issue shares upon exercise of the Warrants is conditioned upon
the availability of an

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exemption from registration of such issuance under Section 4(2) or Regulation D,
Rule 506 or Section 4(6) of the Securities Act of 1933, as amended (the "Act")
and corresponding state securities laws, or some other exemption from
registration under federal and state securities laws acceptable to the Company.
Holder understands and agrees that the Warrants and the Common Shares to be
issued upon exercise of the Warrants will be considered "restricted" securities
within the meaning of the Act and will be subject to significant limitations on
resale under the Act and state securities laws. Prior to the issuance of such
shares, the Company shall secure from its counsel an opinion to the effect that
the issuance of the shares on the exercise of the Warrants will be a transaction
exempt from registration under applicable federal and state securities laws.
Prior to the resale of such shares, Holder shall secure from his counsel an
opinion to the effect that the resale of the shares received on the exercise of
the Warrants will be done in compliance with applicable federal and state
securities laws. Holder shall indemnify and hold harmless the Company for all
claims, losses or expenses, including attorney fees, arising out of Holder's
failure to comply with all applicable securities laws. The Company shall
indemnify and hold harmless Holder for all claims, losses or expenses, including
attorney fees, arising out of the Company's failure to comply with all
applicable securities laws.

      9. Exemption of Shares of Common Stock Issuable Upon Exercise of Warrants.
If any shares of common stock issuable upon the exercise of a Warrant require
the filing of any document or notice or approval of any governmental authority,
or the taking of any other action under the laws of the United States of America
or any state, before such shares of common stock may be validly issued pursuant
to exemption from registration under the laws of the United States of America or
any state, then the Company covenants and represents to the Warrant Holder that
it will in good faith and as expeditiously as possible endeavor to prepare and
make such filing, secure such approval or to take such other action as the case
may be, at its sole expense; provided, however, that in no event shall such
shares of Common Stock be issued, and the Company shall be authorized hereby to
suspend the exercise of all Warrants for the period during which it is
endeavoring to obtain such approval or take such other action. In the event the
Company shall, at any time, suspend the exercise of Warrants as aforesaid, the
expiration date of the Warrants in effect at the date of each such suspension
shall be extended for the number of days such suspension shall be in effect.

      10. Warrant Redemption. The Warrants are redeemable by the Company at any
time after issuance through the expiration date of June 30, 2006 at the declared
value of $.01 per Warrant ("Redemption Price"). If the Company shall elect to
redeem Warrants as permitted herein, notice of redemption shall be given to the
Holder of all outstanding Warrants to whom the redemption shall apply by mailing
first class mail a notice of such redemption not less than 60 days prior to the
date fixed for the redemption at his last address as it shall appear upon the
books of the Company, but failure to give such notice by mailing to any Holder
of the Warrant, or any defect therein, shall not effect the legality or validity
of the proceedings for the redemption of any other Warrant. The notice of
redemption to each Holder of Warrants shall specify the date fixed for
redemption (the "Redemption Date") and the Redemption Price, and shall state
that payment of the Redemption Price of the Warrants will be made at the office
of the Company or its Warrant Agent, if any, upon presentation and surrender of
such

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Warrants, and shall also state that the right to exercise the Warrants so
redeemable shall terminate on the Redemption Date (stating such date). If the
giving of notice of redemption shall have been completed as above provided, and,
in the case where a Warrant Agent is utilized, its funds sufficient for the
redemption of the Warrant shall have been deposited with the Warrant Agent for
such purpose, the right to exercise the Warrants shall terminate at the close of
business on the Redemption Date, and the Holder of each Warrant shall thereafter
be entitled upon surrender of his Warrant only to receive the Redemption Price
for such Warrant, without interest.

      11. Notice. All notices due to a party to this Agreement shall be sent by
U.S. mail, regular postage, at the following addresses:

                  Sims Agricultural Products Co.
                  Attn:  Dallas H. Paul, President
                  3795 County Road 29
                  Mt. Gilead, Ohio  43338

                  Thomas H. Cunningham
                  975 Taylor Road
                  Mansfield, Ohio 44903

or at such other address or addresses as any party may from time to time furnish
to the others in writing.

      12. Rights. Except for the rights and privileges specifically set forth
herein, the Holder of the Warrants shall have no other rights, powers,
authorities or privileges as holders of stock of the Company and each Warrant
Holder expressly waives all of such rights to the extent permitted by law.

      13. Liability. The Company and the Board of Directors of the Company and
each member thereof will incur no liability for the creation of a series of
preferred stock or a new class of common stock so long as they acted in good
faith in the creation of any such series or class. The Board of Directors'
determination of the dividend rate with respect to any such series or classes of
shares shall be final and conclusive and so long as the Board of Directors acted
in good faith and with reasonable prudence, no Holder of any share of common
stock or Warrant shall have any right to make any claim against any member of
the Board of Directors of the Company. Holders of common shares or Warrants of
the Company shall and do hereby save harmless each member of the Board of
Directors of the Company for any actions taken by them in connection with this
Agreement or the issuance of series or other classes of preferred or common
stock.

      14. Governing Law. This Agreement shall be governed and construed in
accordance with the laws of the State of Ohio, and the parties agree to submit
themselves to the jurisdiction of the courts of that state, with venue in Morrow
County, for the resolution of any dispute arising hereunder.

                                       6
<PAGE>

      15. Titles. The titles and headings contained in this Agreement are for
convenience only and shall not affect the interpretation of any of the terms
hereof.

      16. Copies. A copy of this Agreement shall be mailed by the Company to
Warrant Holder upon the written request of such Warrant Holder.

      17. Cooperation and Further Assurances. The parties hereto agree that they
will execute and deliver to each other and third parties any and all documents
in addition to those expressly provided for herein that may be necessary or
appropriate to effectuate the provisions of this Agreement, whether before, on
or after the date hereof. The parties mutually agree to cooperate with each
other to the extent reasonably required in order to fully accomplish the
transactions herein contemplated.

      18. Amendments. No amendments or variation of the terms and conditions of
this Agreement shall be valid unless evidence by arriving signed by all parties
to this Agreement.

      19. Integration. All agreements, contracts, understandings or arrangements
which may have been heretofore made or had with reference to the subject matter
of this Agreement are hereby wholly abrogated, superseded, discharged and
annulled, it being agreed between the parties that this Agreement constitutes
and expresses the entire understanding between them, all other promises,
representations, agreements, understandings and arrangements being herein
merged.

      20. Legal Representation. The parties hereto have carefully read this
Agreement and have had ample time and opportunity to discuss the terms and
contents of this Agreement with their attorneys and other advisors and know and
understand the contents of this Agreement. The parties hereto have signed this
Agreement as their own free and voluntary acts.

      21. Non-Waiver. The failure of any party to insist in any one or more
instances upon performance by another party of any of the terms and conditions
of this Agreement shall not be construed as a waiver or relinquishment of the
future performance thereof, and the other's obligation with respect to such
future performance shall continue in full force and effect.

      22. Restrictions on Assignment. The provisions of this Agreement
pertaining to the rights and duties of Holder are personal to Holder and Holder
shall not assign any such right or delegate any such duty without the prior
written consent of the Company. The Company shall have the right to assign this
Agreement without the consent of Holder.

      IN WITNESS WHEREOF, this Agreement has been executed the 21st day of
June, 1999.

                                       7
<PAGE>

                                    SIMS AGRICULTURAL PRODUCTS CO.

                                    By:
                                        ----------------------------------
                                        Dallas H. Paul, President

                                    --------------------------------------
                                    "Holder"

                                       8
<PAGE>

                                    EXHIBIT A

                               WARRANT CERTIFICATE

                                       9

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