Document:

<PAGE>

                                                                EXHIBIT 10.9

                               TERM LOAN AGREEMENT

                                      AMONG

                               TURF PARTNERS, INC.
                                       AND
                              ECOSOIL SYSTEMS, INC.

                                   "BORROWERS"

                                       AND

                              J. R. SIMPLOT COMPANY
                                    "SIMPLOT"

                           DATED AS OF APRIL 12, 2000

<PAGE>
                                TABLE OF CONTENTS

<TABLE>
<S>                                                                         <C>
SECTION 1.  DEFINED TERMS AND RULES OF INTERPRETATION........................1

   A.    DEFINED TERMS.......................................................1
   B.    RULES OF INTERPRETATION.............................................3

SECTION 2.  LETTER OF CREDIT COMMITMENT......................................4

   2.1      ISSUANCE OF LETTER OF CREDIT.....................................4
   2.2      PAYMENT OF LETTER OF CREDIT EXPENSES.............................4
   2.3      REPAYMENT OF AMOUNTS DRAWN ON LETTER OF CREDIT...................4
   2.4      CONDITIONS TO ISSUANCE OF LETTER OF CREDIT.......................5

SECTION 3.  TERM LOAN........................................................5

   3.1      AMOUNT...........................................................5
   3.2      INTEREST.........................................................6
   3.3      PRINCIPAL........................................................6
   3.4      USE OF PROCEEDS..................................................7
   3.5      CONDITIONS TO TERM LOAN ADVANCE..................................7

SECTION 4.  BORROWERS' COVENANTS.............................................8

   4.1      FURNISH FINANCIAL STATEMENTS.....................................9
   4.2      REORGANIZATION, SALE OF ASSETS, CHANGE OF NAME...................9
   4.3      MAINTENANCE OF EXISTENCE.........................................9
   4.4      MAINTENANCE OF RECORDS...........................................9
   4.5      MAINTENANCE AND PROPERTIES.......................................9
   4.6      CONDUCT OF BUSINESS.............................................10
   4.7      MAINTENANCE OF INSURANCE........................................10
   4.8      COMPLIANCE WITH LAWS............................................10
   4.9      RIGHT OF INSPECTION.............................................10
   4.10     ENVIRONMENTAL...................................................10
   4.11     AGING OF ACCOUNTS AND PAYABLES REPORT...........................10
   4.12     DEBT............................................................11
   4.13     EXTENSION OF CREDIT.............................................11
   4.14     REPAYMENT OF COAST TERM LOAN....................................11

SECTION 5.  REPRESENTATIONS AND WARRANTIES..................................11

   5.1      INCORPORATION, GOOD STANDING, AND DUE QUALIFICATION.............11
   5.2      CORPORATE POWER AND AUTHORITY...................................11
   5.3      LEGALLY ENFORCEABLE AGREEMENT...................................12
   5.4      FINANCIAL STATEMENTS............................................12
   5.5      LABOR DISPUTE AND ACTS OF GOD...................................12
   5.6      OTHER AGREEMENTS................................................12
   5.7      LITIGATION......................................................13
</TABLE>

                                     -i-
<PAGE>

<TABLE>
<S>                                                                         <C>
   5.8      NO DEFAULT ON OUTSTANDING JUDGMENTS OR ORDERS...................13
   5.9      OWNERSHIP AND LIENS.............................................13
   5.10     ERISA...........................................................13
   5.11     OPERATION OF BUSINESS...........................................14
   5.12     TAXES...........................................................14
   5.13     ENVIRONMENT.....................................................14

SECTION 6.  EVENTS OF DEFAULT...............................................14

SECTION 7.  REMEDIES UPON DEFAULT...........................................15

   7.1      NO LIMITATION ON REMEDIES.......................................16
   7.2      NO COURSE OF DEALING............................................16
   7.3      CONSENT TO RELIEF FROM AUTOMATIC STAY...........................16

SECTION 8.  MISCELLANEOUS...................................................17

   8.1      NOTICES.........................................................17
   8.2      GOVERNING LAW...................................................18
   8.3      TIME IS OF THE ESSENCE..........................................18
   8.4      ATTORNEY FEES...................................................18
   8.5      ENTIRE AGREEMENT................................................18
   8.6      SUCCESSORS AND ASSIGNS..........................................18
   8.7      PREPARATION OF AGREEMENT........................................19
   8.8      HEADINGS........................................................19
   8.9      CONSTRUCTION....................................................19
   8.10     SEVERABILITY....................................................19
   8.11     COUNTERPARTS....................................................19
   8.12     PUBLIC STATEMENTS AND PRESS RELEASES............................19
   8.13     SERVICE OF PROCESS, CONSENT TO JURISDICTION.....................20
</TABLE>

                                     -ii-
<PAGE>

                                    AGREEMENT

     THIS AGREEMENT is made and entered into as of the 12th day of April, 2000,
by and among TURF PARTNERS, INC., a Delaware corporation ("Turf Partners"), and
ECO SOIL SYSTEMS, INC., a Nebraska corporation ("ESSI"), jointly and severally
(Turf Partners and ESSI are sometimes collectively referred to herein as
"Borrowers") and J. R. SIMPLOT COMPANY, a Nevada corporation, and a wholly-owned
subsidiary to be formed under the laws of the State of Idaho intended to be
named SIMPLOT TURF PARTNERS ACQUISTION COMPANY (collectively, "Simplot").

                                    RECITALS

     1. Borrowers and Simplot made and entered into an Asset Purchase
Agreement dated March 27, 2000 and an Amended and Restated Asset Purchase
Agreement dated as of April 5, 2000 (collectively, the "Purchase Agreement"),
pursuant to which Turf Partners shall sell substantially all of its assets to
Simplot in or around July 2000.

     2. Borrowers have need for additional financing between the date of the
Purchase Agreement and the closing date under the Purchase Agreement and have
requested Simplot provide certain of such additional financing.

     3. Simplot has agreed to provide for the extension of a loan to Borrowers
as more particularly set forth herein, in order to accommodate Turf Partners'
operation of its business as contemplated by the Purchase Agreement and to
accommodate ESSI's operation of its business.

     NOW, THEREFORE, in consideration of the provisions contained herein and the
recitals set forth above, which are a material part of this Agreement, the
parties agree as follows:

     SECTION 1. DEFINED TERMS AND RULES OF INTERPRETATION.

     A. DEFINED TERMS.

          As used in this Agreement, terms defined in the recitals or elsewhere
in this Agreement shall have the meanings so assigned, and additionally, the
following terms shall have the following meanings:

          1.1 AGREEMENT means this Agreement.

          1.2 BORROWER'S BOOKS means all of the Borrowers' books and records
including, but not limited to: minute books; ledgers; records indicating,
summarizing, or evidencing the Borrower's assets, liabilities, and accounts; all
information relating to the Borrowers' business operations or financial
condition; and all computer programs, disk or tape files, printouts, runs, and

AGREEMENT - 1

<PAGE>

other computer-prepared information and the equipment containing such
information.

          1.3 BUSINESS DAY means any day other than a Saturday, Sunday, or other
day, on which commercial banks in Idaho are authorized or required to close
under the laws of the state of Idaho.

          1.4 CLOSING DATE shall have the same meaning as is ascribed to such
term in the Purchase Agreement.

          1.5 CODE means the Idaho Uniform Commercial Code. Any and all terms
used in this Agreement that are defined in the Code and not otherwise
specifically defined herein shall be construed and defined in accordance with
the meaning and definition described to such terms under the Code.

          1.6 COLLATERAL means all property securing the Obligations pursuant to
the Security Agreements.

          1.7 DOWN PAYMENT shall have the same meaning as is ascribed to such
term in the Purchase Agreement.

          1.8 EVENT OF DEFAULT means the occurrence of any one of the events set
forth in Section 6 of this Agreement.

          1.9 GAAP means the generally accepted accounting principles as set
forth in the opinions and pronouncements of the Accounting Principles Board and
of the American Institute of Certified Public Accountants, and the statements
and pronouncements of the Financial Accounting Standards Board that are
applicable to the circumstances as of the date of determination, consistently
applied.

          1.10 INSOLVENCY PROCEEDING means any proceeding commenced by or
against any person or entity under any provision of the Federal Bankruptcy Code,
as amended, or under any other bankruptcy or insolvency law, including, but not
limited to assignments for the benefit of creditors, formal or informal
moratoriums, compositions, or extensions generally with its creditors.

          1.11 JUDICIAL OFFICER OR ASSIGNEE means any trustee, receiver,
controller, custodian, assignee for the benefit of creditors, or any other
person or entity having powers or duties like or similar to the powers and
duties of a trustee, receiver, controller, custodian, or assignee for the
benefit of creditors.

          1.12 LOAN DOCUMENTS means collectively this Agreement, the Term Note,
the Security Agreement and any other concurrent agreements entered into between
Borrowers, or either of them, and/or Simplot in connection with this Agreement,
and any amendments or supplements to any of the foregoing, but not including the
Purchase Agreement or the Ancillary Agreements (as

AGREEMENT - 2

<PAGE>

defined in the Purchase Agreement)

          1.13 OBLIGATIONS means the Term Note and any and all loans, advances,
overdrafts, debts, liabilities, lease payments, guarantees, covenants, and
duties owing by Borrowers, or either of them, to Simplot of any kind and
description arising under the Loan Documents; any debt, liability, or obligation
owing by Borrowers, or either of them, to others that Simplot may have obtained
by assignment or otherwise; any interest not paid when due; and all Simplot
Expenses.

          1.14 PERSON means any individual, partnership, corporation, trust or
other entity.

          1.15 PRIME RATE means that variable rate of interest identified as
"Prime Rate" in that certain Term Loan and Security Agreement by and between
ESSI, as borrower, and Coast Business Credit, as lender, dated as of June 30,
1999.

          1.16 SATISFACTION DATE means March 1, 2001, and is the date on which
the Term Loan must be satisfied.

          1.17 SECURITY AGREEMENT means that certain Security Agreement between
Borrower and Simplot executed and delivered in accordance with the requirements
of this Agreement in form and substance reasonably acceptable to Simplot.

          1.18 SIMPLOT EXPENSES means all costs or expenses required to be paid
by Borrowers under this Agreement or under any of the other Loan Documents that
are paid or advanced by Simplot; filing, recording, publication, and search fees
paid or incurred by Simplot in the connection with Simplot's transactions with
Borrowers; costs and expenses incurred by Simplot to correct any default or
enforce any provision of the Loan Documents, or in gaining possession of,
maintaining, handling, preserving, preparing for sale, and/or advertising to
sell the Collateral, whether or not a sale is consummated; reasonable attorney's
fees, costs, and expenses incurred by Simplot in advising, structuring,
drafting, reviewing, amending, terminating, enforcing, defending, or concerning
the Loan Documents or any portion thereof, irrespective of whether suit is
brought.

          1.19 TERM LOAN means the term loan advanced to Borrowers pursuant
hereto.

          1.20 TERM NOTE means the Term Note executed in connection herewith, in
substantially the same form as EXHIBIT 1.20.

     B. RULES OF INTERPRETATION.

          The following rules of interpretation shall apply to this Agreement,
the exhibits hereto, and any other documents made or delivered pursuant to or in
connection with this Agreement, unless otherwise expressly provided for herein
or therein, and unless the context hereof or thereof clearly requires otherwise:

AGREEMENT - 3

<PAGE>

          A reference to any document or agreement shall include such document
or agreement as amended, modified, or supplemented from time to time in
accordance with its terms, and if a term is said to have a meaning assigned to
such term in another document or agreement and the meaning of such term therein
is amended, modified, or supplemented, then the meaning of such term herein
shall be deemed automatically amended, modified, or supplemented in a like
manner. References to the plural include the singular; the singular, the plural;
the whole, the part; and the part, the whole. The words "include," "includes,"
and "including" are not limiting. A reference to any person or entity includes
its successors, heirs, and permitted assigns. Where the character or amount of
any asset or liability or item of income or expense is required to be determined
or any consolidation or other accounting computation is required to be made for
purposes of this Agreement, or any exhibit hereto, or any certificate, report,
or other document or instrument made or delivered pursuant to or in connection
with this Agreement, such determination or computation shall be done in
accordance with GAAP, except where such principles are inconsistent with the
express requirements hereof or of such exhibit, certificate, report, document,
or instrument.

          SECTION 2. LETTER OF CREDIT COMMITMENT.

          2.1 ISSUANCE OF LETTER OF CREDIT.

          Simplot agrees to exercise best efforts to obtain the issuance of a
stand-by Letter of Credit in the amount of not less than $2,000,000 from an
issuing bank reasonably acceptable to Coast Business Credit and having terms
reasonably acceptable to Coast Business Credit, Simplot and Borrowers, that may
be drawn upon by Coast Business Credit in the event of a payment default by ESSI
under the terms of that certain Term Loan Agreement dated as of July 30, 1999
between ESSI and Coast Business Credit (the "Coast Term Loan"), between the date
hereof and the expiry date of said letter of credit. The letter of credit shall
expire on August 31, 2000 unless the transactions contemplated by the Purchase
Agreement have been consummated by August 31, 2000 in which case the expiry date
of the letter of credit shall automatically extend to December 31, 2000.

          2.2 PAYMENT OF LETTER OF CREDIT EXPENSES.

          All monies paid by Simplot to obtain the issuance of the Letter of
Credit are Simplot Expenses hereunder.

          2.3 REPAYMENT OF AMOUNTS DRAWN ON LETTER OF CREDIT.

          In the event the beneficiary of the Letter of Credit makes any draw
thereunder, Borrowers shall be obligated to immediately repay to Simplot the
amounts drawn, together with interest thereon at the rate of Prime Rate, plus
six and one quarter percent (6.25%). In an effort to recoup such amounts,
Simplot shall be entitled to (a) withhold any amounts due Turf Partners from the
Down Payment on the Closing Date (provided that such withholding shall not
exceed an amount that would cause the proceeds of the Down Payment paid to Turf
Partners to be less than $15

AGREEMENT - 4

<PAGE>

million) or the balance of the Purchase Price on the Satisfaction Date, and (b)
withhold any amounts due ESSI after the Closing Date for microbial products or
services sold by ESSI to Simplot after the Closing Date.

          2.4 CONDITIONS TO ISSUANCE OF LETTER OF CREDIT.

          The obligation of Simplot to obtain the issuance of the letter of
credit is subject to the following conditions precedent:

          A. Simplot shall have received a resolution duly adopted by each
          Borrower's board of directors authorizing the execution, delivery, and
          performance of the Loan Documents and the transactions contemplated
          thereby.

          B. Simplot shall have received copies of executed documents
          evidencing:

          (i)  the modification of that certain Loan and Security Agreement
               between Turf Partners and Coast Business Credit dated June 30,
               1999 (the "Revolver") to increase the seasonal limit on the
               inventory loan by $2.5 million during the period April 2000-June
               2000;

          (ii) the modification of the Revolver to adjust the advance rate for
               inventory to 65% from 55%; and

         (iii) an intercreditor agreement among Coast Business Credit and
               Simplot in form and substance satisfactory to Simplot under which
               Coast will partially assign its security interests in the
               collateral securing the Term Loan to Simplot to secure repayment
               of amounts advanced under the letter of credit.

          C. There shall not have occurred any material adverse effect with
          respect to the financial condition or business operations (including
          the voluntary or involuntary filing of a petition in bankruptcy) of
          either Borrower.

          D. All legal matters incident to the transactions hereby contemplated
          shall be reasonably satisfactory to Simplot.

          E. Simplot shall have received such other approvals, opinions, or
          documents as Simplot may reasonably request.

     SECTION 3. TERM LOAN.

     3.1 AMOUNT.

AGREEMENT - 5

<PAGE>

     Simplot agrees to extend to Borrowers the sum of Three Million Dollars
($3,000,000) on a date not later than two business days following satisfaction
of the conditions set forth at Section 3.5 below.

     3.2 INTEREST.

     Interest shall accrue on the principal outstanding on the Term Loan at a
rate of two and one-quarter percent (2.25%) above Prime Rate. All interest
chargeable under this Agreement shall be computed on the basis of a 365-day year
for actual days elapsed. Interest shall be due and payable on the Closing Date
and, if any principal remains outstanding after the Closing Date, on the
Satisfaction Date. In the event the Borrowers fail to pay principal and accrued
interest on the Satisfaction Date or Simplot's demand therefore as provided in
Section 3.3 below, interest shall increase to Prime Rate plus six and one
quarter percent (6.25%) per annum, effective on the tenth day following the
Satisfaction Date.

     3.3 PRINCIPAL.

     Borrowers shall repay principal and accrued interest outstanding on the
Term Loan and any other Obligations on the Closing Date by Simplot offsetting
principal and accrued interest owing under the Term Loan against the Down
Payment due from Simplot pursuant to the Purchase Agreement, so long as the
effect of such offset will not reduce the Down Payment to less than Fifteen
Million Dollars ($15,000,000). In the event there remains any principal or
interest owing on the Term Loan or any other Obligations owing pursuant to this
Agreement after the Closing Date, then Simplot shall be entitled to withhold any
amounts due ESSI after the Closing Date for microbial products or services sold
by ESSI to Simplot after the Closing Date and apply such amounts withheld to the
Obligations owing thereunder. Borrowers will repay all outstanding Obligations
in full on the Satisfaction Date. In the event that (i) the Closing Date is
later than August 31, 2000, (ii) the conditions to Simplot's obligation to close
the transactions contemplated by the Purchase Agreement are not satisfied by
August 31, 2000, or (iii) the Purchase Agreement is terminated, then all
Obligations owing hereunder shall be due and payable in full upon Simplot's
demand.

AGREEMENT - 6

<PAGE>

     3.4 USE OF PROCEEDS.

     The proceeds of the Term Loan shall be used by Borrowers for the following
purposes in the following order: (1) to satisfy past due accounts payable of
Turf Partners, (2) to satisfy amounts owing from Turf Partners for sales
commissions, and (3) for Turf Partners' working capital needs.

     3.5 CONDITIONS TO TERM LOAN ADVANCE.

     The obligation of Simplot to advance the Term Loan is subject to the
following conditions precedent:

          A.   Borrowers shall have executed and delivered the Term Note to
               Simplot.

          B.   Borrowers shall have executed and delivered the Security
               Agreement and any financing statements reasonably required to
               perfect the security interest therein granted to Simplot.

          C.   Simplot shall have received a certificate of good standing with
               respect to each Borrower stating that the Borrower is in good
               standing, as of a date reasonably contemporaneous with the date
               of this Agreement, under the laws of its state of incorporation.

          D.   Simplot shall have received a certified copy of each
               Borrower's articles of incorporation and bylaws.

          E.   Simplot shall have received a resolution duly adopted by each
               Borrower's board of directors authorizing the execution,
               delivery, and performance of the Loan Documents and the
               transactions contemplated thereby.

          F.   Simplot shall have received copies of executed documents
               evidencing:

              (iv)  the modification of that certain Loan and Security Agreement
                    between Turf Partners and Coast Business Credit dated June
                    30, 1999 (the "Revolver") to increase the seasonal limit on
                    the inventory loan by $2.5 million during the period April
                    2000-June 2000;

              (v)   the modification of the Revolver to adjust the advance rate
                    for inventory to 65% from 55%;

              (vi)  the sale and leaseback of BioJect systems between ESSI and
                    Imperial Bank;

              (vii) the consent of Coast Business Credit, the parties to that
                    certain Note and Warrant Purchase Agreement with ESSI dated
                    as of August 25,

AGREEMENT - 7

<PAGE>

                    1998 and the parties to that certain Convertible Debentures
                    and Warrants Purchase Agreement with ESSI and its
                    subsidiaries dated as of January 17, 2000 to the
                    transactions contemplated hereby; and

             (viii) an intercreditor agreement among Coast Business Credit and
                    Simplot in form and substance satisfactory to Simplot under
                    which Coast will partially assign its security interests in
                    the collateral securing the Term Loan to Simplot to secure
                    repayment of amounts advanced under the letter of credit.

          G.   Simplot shall have received an opinion from Borrowers' counsel in
               form and substance satisfactory to Simplot on the matters set
               forth in Sections 5.1, 5.2, and 5.3 below.

          H.   The representations and warranties of Borrower in Section 5
               hereof shall be true on and as of the date of the making of such
               advance with the same force and effect as if made on and as of
               such date.

          I.   There shall not have occurred any material adverse effect with
               respect to the financial condition or business operations
               (including the voluntary or involuntary filing of a petition in
               bankruptcy) of either Borrower.

          J.   All legal matters incident to the transactions hereby
               contemplated shall be reasonably satisfactory to Simplot.

          K.   Simplot shall have received such other approvals, opinions, or
               documents as Simplot may reasonably request.

     SECTION 4. BORROWERS' COVENANTS.

     Until the payment in full of the Obligations and the performance of all
other obligations of Borrowers hereunder, Borrowers agree that unless Simplot
shall otherwise consent in writing, Borrowers will comply with the following.

AGREEMENT - 8

<PAGE>

     4.1  FURNISH FINANCIAL STATEMENTS.

     Each Borrower will furnish Simplot:

     1.   Within 90 days after the end of each fiscal year of Borrower, copies
          of balance sheets of Borrower, as at the close of such fiscal year and
          statements of income of Borrower for such year prepared by a certified
          public accountant satisfactory to Simplot;

     2.   By the 20th day of each month hereafter, beginning on April 20, 2000,
          a financial statement of income for the prior month; and

     3.   From time to time, such further information regarding the business,
          affairs, and financial condition of Borrowers as Simplot may
          reasonably request.

     All financial statements delivered hereunder shall be prepared on the basis
of GAAP consistently applied.

     4.2 REORGANIZATION, SALE OF ASSETS, CHANGE OF NAME.

     Except as required by the Purchase Agreement, each Borrower will not (1)
incorporate, merge or consolidate with or into any corporation, or sell, lease,
transfer, or otherwise dispose of all or any substantial part of its assets,
whether now owned or hereafter acquired, or (2) change its corporate name,
except with the prior written authorization of Simplot.

     4.3  MAINTENANCE OF EXISTENCE.

     Each Borrower will preserve and maintain its corporate existence and good
standing in the jurisdiction of its incorporation, and qualify and remain
qualified as a foreign corporation in each jurisdiction where each qualification
is required.

     4.4  MAINTENANCE OF RECORDS.

     Each Borrower will keep adequate records and books of account, in which
complete entries will be made in accordance with GAAP consistently applied,
reflecting all financial transactions of Borrower.

     4.5  MAINTENANCE AND PROPERTIES.

     Each Borrower will maintain, keep, and preserve all of its properties
(tangible and intangible) necessary or useful in the proper conduct of its
business in good working order and condition, ordinary wear and tear excepted.

AGREEMENT - 9

<PAGE>

     4.6  CONDUCT OF BUSINESS.

     Each Borrower will conduct its business in the ordinary course of business.

     4.7  MAINTENANCE OF INSURANCE.

     Each Borrower will maintain insurance with financially sound and reputable
insurance companies or associations in such amounts and covering such risks as
are usually carried by companies engaged in the same or similar business, which
insurance may provide for reasonable deductibility from coverage thereof.

     4.8  COMPLIANCE WITH LAWS.

     Each Borrower will comply in all material respects with all applicable
laws, rules, regulations, and orders, such compliance to include, without
limitation, paying before the same becomes delinquent all taxes, assessments,
and governmental charges imposed upon it or upon its properties, and remitting
to all governmental agencies all employment taxes withheld from employees'
paychecks.

     4.9  RIGHT OF INSPECTION.

     Each Borrower will at any reasonable time and from time to time, permit
Simplot or any agent or representative of Simplot to examine and make copies of
and abstracts from Borrower's books and visit the properties of Borrower and
discuss the affairs, finances, and accounts of Borrower with any of its
respective officers and directors and Borrower's independent accountants.

     4.10 ENVIRONMENTAL.

     Each Borrower will be and remain in compliance with the provisions of all
federal, state, and local environmental, health and safety laws, codes, and
ordinances, and all rules and regulations issued thereunder, and will notify
Simplot immediately of any notice of a hazardous discharge or environmental
complaint received from any governmental agency or any other party, or of any
hazardous discharge from or affecting its properties (whether owned or leased)
and will immediately contain and remove the same in compliance with all
applicable laws.

     4.11 AGING OF ACCOUNTS AND PAYABLES REPORT.

     Each Borrower shall provide to Simplot no later than the 15th day of each
month following execution of this Agreement, (i) a summary and aging report of
its accounts receivable in form reasonably satisfactory to Simplot, and (ii) a
listing of accounts payable in form reasonably satisfactory to Simplot.

AGREEMENT - 10

<PAGE>

     4.12 DEBT.

     Neither Borrower will incur any debts other than (1) debt existing on the
date of this Agreement or contemplated by the terms of agreements in place on
the date hereof (2) normal trade credit in the ordinary course of business; and
(3) those debts contemplated by this Agreement.

     4.13 EXTENSION OF CREDIT.

     Neither Borrower will make any advance or loan, except for (1) normal
intercompany trade credit and (2) an intercompany loan from ESSI to its
wholly-owned subsidiary Agricultural Supply, Inc. in an amount not to exceed $1
million.

     4.14 REPAYMENT OF COAST TERM LOAN

     ESSI shall make all payments on the Coast Term Loan as required by its
terms; provided however, that ESSI shall satisfy all amounts owing on the Coast
Term Loan on or before December 15, 2000.

     SECTION 5. REPRESENTATIONS AND WARRANTIES.

     In order to induce Simplot to enter into this Agreement, each Borrower
hereby makes the following representations and warranties which shall survive
the execution and delivery of this Agreement.

     5.1  INCORPORATION, GOOD STANDING, AND DUE QUALIFICATION.

     Borrower is a corporation duly organized, validly existing, and in good
standing under the laws of the state of Delaware (for Turf Partners) or Nebraska
(for ESSI), and has the corporate power and authority to own its assets and to
transact the business in which it is now engaged or proposed to be engaged in
and is duly qualified as a foreign corporation and in good standing under the
laws of each other jurisdiction in which such qualification is required, except
where the failure to be qualified will not have a material adverse effect on
such Borrower's operations (financial or otherwise) or its ability to perform
its obligations hereunder.

     5.2  CORPORATE POWER AND AUTHORITY.

     The execution, delivery, and performance by Borrower of the Loan Documents
to which it is a party have been duly authorized by all necessary corporate
action and do not and will not (1) require any consent or approval of the
stockholders of such corporation; (2) contravene such corporation's charter or
bylaws; (3) violate any provision of any law, rule, regulation (including,
without limitation, regulations U and X of the Board of Governors of the Federal
Reserve System), order, writ, judgment, injunction, decree, determination, or
award presently in effect having applicability to Borrower; (4) result in a
breach of or constitute a default under any indenture or

AGREEMENT - 11

<PAGE>

loan or credit agreement or any other material agreement, lease, or instrument
to which Borrower is a party or by which it or its properties may be bound or
affected; (5) result in, or require, the creation or imposition of any lien upon
or with respect to any of the properties now owned or hereafter acquired by
Borrower; and (6) cause Borrower to be in default under any such law, rule,
regulation, order, writ, judgment, injunction, decree, determination, or award
or any such indenture, agreement, lease, or instrument.

     5.3  LEGALLY ENFORCEABLE AGREEMENT.

     This Agreement is, and each of the other Loan Documents when delivered
under this Agreement will be, legal, valid, and binding obligations of Borrower,
enforceable against Borrower in accordance with their respective terms, except
to the extent that such enforcement may be limited by applicable bankruptcy,
insolvency, and other similar laws affecting creditors' rights generally.

     5.4  FINANCIAL STATEMENTS.

     The balance sheets and statements of income of Borrower heretofore
furnished to Simplot are complete and correct and fairly present the financial
condition of Borrower as at such dates and the results of operations of Borrower
for the periods covered by such statements, all in accordance with GAAP
consistently applied, and since the date of delivery of such financial
statements, there has been no material adverse change in the condition
(financial or otherwise), business, or operations of Borrower. There are no
liabilities of Borrower, fixed or contingent, which are material, but are not
reflected in the financial statements, other than liabilities arising in the
ordinary course of business since the date of such financial statements. No
information, exhibit, or report furnished by Borrower to Simplot in connection
with the negotiation of this Agreement contained any material misstatement of
fact or omitted to state a material fact or any fact necessary to make this
statement contained therein not materially misleading.

     5.5  LABOR DISPUTE AND ACTS OF GOD.

     Neither the business nor the properties of Borrower are affected by any
fire, explosion, accident, strike, lockout, or other labor dispute, drought,
storm, hail, earthquake, embargo, act of God or of the public enemy, or other
casualty (whether or not covered by insurance), materially and adversely
affecting such business or properties or the operation of Borrower.

     5.6  OTHER AGREEMENTS.

     Borrower is not a party to any indenture, loan, or credit agreement, or to
any lease or other agreement or instrument or subject to any charter or
corporate restriction which could have a material adverse effect on the
business, properties, assets, operations, or conditions, financial or otherwise,
of Borrower except for provisions that would require ESSI to issue shares of
common stock or warrants to holders of its Senior Subordinated Notes and
Convertible Debentures under certain circumstances, or the ability of Borrower
to carry out its obligations under the Loan

AGREEMENT - 12

<PAGE>

Documents to which it is a party. Borrower is not in default in any respect in
the performance, observance, or fulfillment of any of the obligations,
covenants, or conditions contained in any agreement or instrument material to
its business to which it is a party, except as such default may have been waived
and the copy(ies) of the waiver(s) given to Simplot.

     5.7  LITIGATION.

     There is no pending or, to the best knowledge of Borrower, threatened
action or proceeding against or affecting Borrower before any court, government
agency or arbitrator, which may, in any one case or in the aggregate, materially
adversely affect the financial condition, operations, properties, or business of
Borrower or the ability of Borrower to perform its obligations under the Loan
Documents, except for a securities class action lawsuit pending in the United
States District Court for the Southern District of California and captioned
Wissinger v. Eco Soil Systems, Inc. et al., No. 99CV2504-B(JAH).

     5.8  NO DEFAULT ON OUTSTANDING JUDGMENTS OR ORDERS.

     Borrower has satisfied all judgments, and Borrower is not in default with
respect to any judgment, writ, injunction, decree, rule, or regulation of any
court, arbitrator, or federal, state, municipal, or other governmental
authority, commission, board, bureau, agency, or instrumentality, domestic or
foreign.

     5.9  OWNERSHIP AND LIENS.

     Borrower has title to, or valid leasehold interests in, all of its
properties and assets, real and personal, including the properties and assets
and leasehold interests reflected in the financial statements referred to in
Section 5.4 (other than any properties or assets disposed of in the ordinary
course of business), and none of the properties and assets owned by Borrower and
none of its leasehold interests is subject to any lien except liens in favor of
(1) Coast Business Credit, BH Capital Investments, L.P., MB Capital Partners,
Excalibur Limited. Partnership, Gundyco. in trust for RSP 550-98866-19, all in
effect on the date hereof, and (2) purchase money liens on inventory and
equipment, liens on goods consigned to Borrowers and liens arising from leases
of equipment and vehicles, all as in effect on the date hereof and as may arise
in the ordinary course of business during the term of this Agreement (all of the
foregoing liens identified in subprovisions (1) and (2) being referred to herein
as "Permitted Liens").

     5.10 ERISA.

     Borrower is in compliance in all material respects with all applicable
provisions of ERISA. Neither a reportable event nor a prohibited transaction
under ERISA has occurred and is continuing with respect to any plan and Borrower
has incurred no liability to the Pension Benefit Guarantee Corporation under
ERISA.

AGREEMENT - 13

<PAGE>

     5.11 OPERATION OF BUSINESS.

     Borrower possesses all licenses, permits, franchises, patents, copyrights,
trademarks, and trade names or rights thereto, to conduct their respective
businesses substantially as now conducted and as presently proposed to be
conducted, and Borrower is not in violation of any valid rights of others with
respect to any of the foregoing.

     5.12 TAXES.

     Borrower has filed all tax returns (federal, state, and local) required to
be filed and have paid all taxes, assessments, and governmental charges and
levies thereon to be due, including interest and penalties, and no such amounts
are in dispute or subject of an audit.

     5.13 ENVIRONMENT.

     Borrower has duly complied with, and its businesses, operations, assets,
equipment, property, leaseholds or other facilities are in compliance with, the
provisions of all federal, state, and local environmental, health, and safety
laws, codes, and ordinances, and all rules and regulations promulgated
thereunder. Borrower has received no notice of, and neither knows of nor
suspects, facts which may constitute any violations of any federal, state, or
local environmental, health, or safety laws, codes, or ordinances and any rules
or regulations promulgated thereunder with respect to its businesses,
operations, assets, equipment, property, leaseholds, or other facilities.

     SECTION 6. EVENTS OF DEFAULT.

     Each of the following constitutes an Event of Default hereunder:

     6.1  Borrowers' failure to pay when due principal and interest or any
installment of principal and/or interest under the Term Note;

     6.2  Borrowers' failure to pay when due any sum that Borrower is required
to pay, or to perform when due any obligation Borrowers are required to perform,
or to observe any obligation required to be observed by Borrowers under this
Agreement or the other Loan Documents;

     6.3  The entry of a decree or order by a court of competent jurisdiction
for relief with respect to Borrowers, or either of them, under Title 11 of the
United States Code or any other applicable federal, state, or foreign bankruptcy
law or similar law appointing a receiver, liquidator, assignee, trustee,
custodian, sequestrator, conservator, or similar official of Borrowers, ordering
the liquidation or winding up of the affairs of Borrower;

     6.4  The filing by Borrowers, or either of them, of a petition or answer or
consent

AGREEMENT - 14

<PAGE>

seeking relief under Title 11 of the United States Code or any other
applicable federal, state, or foreign bankruptcy law or other similar law, or
the consent by Borrowers to the institution of proceedings thereunder or to the
filing of any such petition or the appointment of or taking possession by a
receiver, liquidator, assignee, trustee, custodian, sequestrator, conservator,
or similar official of Borrowers, of any part of the property of Borrowers;

     6.5  Borrowers' providing of any false representation or breach of any
warranty made in this Agreement or the Loan Documents, including any statement
or certificate given in connection therewith;

     6.6  Any sale, transfer, or other disposition of any property that secures
the Obligations (other than sales of inventory and obsolete equipment in the
ordinary course of business), or Borrowers' interest in any such property,
including the consensual or nonconsensual creation of any lien thereon (other
than Permitted Liens), without the prior written approval of Simplot;

     6.7  Any loss, theft, or destruction of, or damage to, any substantial
portion of the Collateral for which there is either no insurance coverage or for
which, in the reasonable opinion of Simplot, there is insufficient insurance
coverage;

     6.8  Any levy, seizure, or attachment upon the Collateral by any third
party, or the filing of any claim and delivery action or foreclosure action
concerning the Collateral;

     6.9  The filing or commencement of any judicial or nonjudicial foreclosure
action with respect to any mortgage or deed of trust on property on which any
Collateral constituting fixtures is located;

     6.10 The filing or recording of any material judgment against Borrowers
which may attach to any of the Collateral where such judgment is not stayed or
satisfied within thirty (30) days of its filing or recording;

     6.11 Any default in a material agreement to which either Borrower is a
party with third parties resulting in a right by such third parties to
accelerate the maturity of such Borrower's indebtedness;

     6.12 This Agreement and the Loan Documents shall at any time after their
execution and delivery and for any reason cease (1) to create a valid and
perfected security interest in and to the Collateral, or (2) to be in full force
and effect, or (3) this Agreement and the Loan Documents shall be declared null
and void, or (4) the validity or enforceability of this Agreement and the Loan
Documents shall be contested by Borrower, or (5) Borrower shall deny it has any
liability or obligation under this Agreement or the Loan Documents.

     SECTION 7. REMEDIES UPON DEFAULT.

AGREEMENT - 15

<PAGE>

     7.1  NO LIMITATION ON REMEDIES.

     Upon the occurrence of any Event of Default, Simplot at its sole option and
without notice, may exercise all those rights and remedies at law or equity
allowed by applicable law. Any such rights and remedies are cumulative and may
be exercised in any order deemed appropriate by Simplot.

     7.2  NO COURSE OF DEALING.

     No course of dealing heretofore or hereafter between Borrowers and Simplot,
or any failure or delay on the part of Simplot in exercising any rights or
remedies under this Agreement or existing by law, shall operate as a waiver of
any right or remedy of Simplot, and no single or partial exercise of any right
or remedy hereunder shall operate as a waiver or preclusion to the exercise of
any other right or remedy Simplot may have in regard to said indebtedness.

     7.3  CONSENT TO RELIEF FROM AUTOMATIC STAY.

     Each Borrower hereby agrees that, in consideration of the recitals and
covenants contained herein, and for other good and valuable consideration, in
the event either Borrower (by its own action, or the action of any of its
creditors) shall, on or before the Satisfaction Date, (1) file with any
bankruptcy court of competent jurisdiction or be the subject of any petition for
relief under Title 11 of the United States Code, as amended, (2) be the subject
of any order for relief issued under such Title 11 of the United States Code, as
amended, (3) file or be the subject of any petition seeking any reorganization,
arrangement, composition, readjustment, liquidation, dissolution, or similar
relief under any present or future federal or state act or law relating to
bankruptcy, insolvency, or other relief for debtors, (4) have sought or
consented to or acquiesced in the appointment of any trustee, receiver,
conservator, or liquidator, or (5) be the subject of any order, judgment, or
decree entered by any court of competent jurisdiction, approving a petition
filed against such party for any reorganization, arrangement, composition,
readjustment, liquidation, dissolution, or similar relief under any present or
future federal or state act or law relating to bankruptcy, insolvency, or relief
for debtors, Simplot shall thereupon be entitled to relief from any automatic
stay imposed by Section 362 of Title 11 of the United States Code, as amended,
or otherwise, on or against the exercise of the rights and remedies otherwise
available to Simplot as provided in the Loan Documents, and as otherwise
provided by law, and each Borrower hereby waives the benefits of such automatic
stay and consents and agrees to raise no objection to such relief.

AGREEMENT - 16

<PAGE>

     SECTION 8. MISCELLANEOUS.

     8.1  NOTICES.

     All notices or demands by any party relating to this Agreement or the Loan
Documents shall be in writing and personally served, delivered by an express
delivery service, or sent by regular United States mail, postage prepaid, to
Borrower, Guarantor, or Simplot, as the case may be, at the addresses set forth
below. The parties hereto may change the address at which they are to receive
notices hereunder by notice in writing in the foregoing manner given to the
others. All notices or demands sent in accordance with this Section 11.1 shall
be deemed received on the earlier of the date of actual receipt or five days
after the deposit thereof in the mail.

         If to Turf Partners:       Turf Partners, Inc.
                                    10740 Thornmont Rd.
                                    San Diego, CA  92127
                                    Attn:  William B. Adams

         With a copy to:            Robert E. Burwell
                                    LATHAM & WATKINS
                                    701 B Street, Suite 2100
                                    San Diego, CA  92101-8197

         If to ESSI:                Eco Soil Systems, Inc.
                                    10740 Thornmont Rd
                                    San Diego, CA  92127
                                    Attn:  William B. Adams

         With a copy to:            Robert E. Burwell
                                    LATHAM & WATKINS
                                    701 B Street, Suite 2100
                                    San Diego, CA  92101-8197

         If to Simplot:             J. R. Simplot Company
                                    P. O. Box 27 (zip 83707)
                                    999 Main Street, Suite 1300
                                    Boise, Idaho 83702
                                    Attention:  Chief Financial Officer

AGREEMENT - 17

<PAGE>

         With a copy to:            J. R. Simplot Company
                                    P. O. Box 27 (zip 83707)
                                    999 Main Street, Suite 1300
                                    Boise, Idaho 83702
                                    Attention:  General Counsel

     8.2  GOVERNING LAW.

     This Agreement shall be governed by and construed in accordance with the
laws of the state of Idaho.

     8.3  TIME IS OF THE ESSENCE.

     Time is of the essence in the performance or observation of all obligations
and agreements hereunder.

     8.4  ATTORNEY FEES.

     Each Borrower agrees to pay on demand all costs and expenses incurred by
Simplot in connection with either Borrower's default hereunder, including but
not limited to the reasonable fees and outofpocket expenses of counsel for
Simplot (including allocable costs of in-house counsel) with respect to advising
Simplot as to its rights under the Loan Documents and all costs and expenses, if
any, in connection with the enforcement of any of the Loan Documents, including
without limitation, attorney fees and costs at trial, on appeal, or in
bankruptcy proceedings.

     8.5  ENTIRE AGREEMENT.

     This Agreement constitutes the final expression of the parties' agreements
regarding these loans and their restructuring and supersedes all prior or
contemporaneous negotiations, understandings, and agreements between the
parties, whether oral or written. Any prior oral promises, representations,
waivers, and courses of conduct are not relied upon and are of no further
effect. This Agreement may not be altered or amended in any manner except by
writing signed by Simplot and Borrowers.

     8.6  SUCCESSORS AND ASSIGNS.

     This Agreement shall bind all of the parties hereto and their respective
heirs, personal representatives, successors, and assigns; provided, however,
this Agreement shall not be assigned by either Borrower without Simplot's prior
written consent.

AGREEMENT - 18

<PAGE>

     8.7  PREPARATION OF AGREEMENT.

     Borrowers acknowledge that they had legal representation in negotiating and
executing this Agreement.

     8.8  HEADINGS.

     Headings and paragraph numbers have been set forth herein for convenience
only. Unless the contrary is compelled by the context, everything contained in
each paragraph applies equally to this entire Agreement.

     8.9  CONSTRUCTION.

     Neither this Agreement nor any uncertainty or ambiguity herein shall be
construed or resolved against Simplot or Borrowers, whether under any rule of
construction or otherwise. On the contrary, this Agreement has been reviewed by
all parties and shall be construed and interpreted according to the ordinary
meaning of the words used so as to fairly accomplish the purposes and intentions
of all parties hereto.

     8.10 SEVERABILITY.

     Each provision of this Agreement shall be severable from every other
provision of this Agreement for the purpose of determining the legal
enforceability of any specific provision.

     8.11 COUNTERPARTS.

     This Agreement may be executed in one or more counterparts, each of which
shall be deemed an original, but all of which together shall constitute one and
the same instrument.

     8.12 PUBLIC STATEMENTS AND PRESS RELEASES

     The parties hereto covenant and agree that, except as provided for
hereinbelow, each will not from and after the date hereof make, issue or release
any public announcement, press release, statement or acknowledgment of the
existence of, or reveal publicly the terms, conditions and status of, the
transactions provided for herein, without the prior written consent of the other
party as to the content and time of release of and the media in which such
statement or announcement is to be made; PROVIDED, HOWEVER, that in the case of
announcements, statements, acknowledgments or revelations which either party is
required by law to make, issue or release, the making, issuing or releasing of
any such announcement, statement, acknowledgment or revelation by the party so
required to do so by law shall not constitute a breach of this Agreement if such
party shall have given, to the extent reasonably possible, not less than two (2)
calendar days prior notice to the other party, and shall have attempted, to the
extent reasonably possible, to clear such announcement, statement,
acknowledgment or revelation with the other party. Each party hereto agrees that
it will

AGREEMENT - 19

<PAGE>

not unreasonably withhold any such consent or clearance.

     8.13 SERVICE OF PROCESS, CONSENT TO JURISDICTION.

     SERVICE OF PROCESS. Each party hereto irrevocably consents to the
service of any  process,  pleading,  notices or other  papers by the  mailing of
copies thereof by registered, certified or first class mail, postage prepaid, to
such party at such  party's  address set forth  herein,  or by any other  method
provided or permitted under Idaho law.

     CONSENT AND JURISDICTION. Each party hereto irrevocably and unconditionally
(1) agrees that any suit, action or other legal proceeding arising out of this
Agreement may be brought in the United States District Court for the District of
Idaho or, if such court does not have jurisdiction or will not accept
jurisdiction, in any court of general jurisdiction in Ada County, Idaho; (2)
consents to the jurisdiction or any such court in any such suit, action or
proceeding; and (3) waives any objection which such party may have to the laying
of venue of any such suit, action or proceeding in any such court.

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed on their respective behalf, by their respective officers thereunto
duly authorized, all as of the 12th day of April, 2000.

                                            SIMPLOT:

                                            J. R. SIMPLOT COMPANY

                                            By  /s/ Dennis R. Mogensen
                                              ----------------------------------
                                            Its  Senior Vice President and CFO
                                              ----------------------------------

(signatures continued on following page)

AGREEMENT -20

<PAGE>

                                            BORROWERS:

                                            TURF PARTNERS, INC.

                                            By  /s/ William B. Adams
                                              ----------------------------------
                                            Its  CEO
                                              ----------------------------------

                                            ECO SOIL SYSTEMS, INC.

                                            By  /s/ William B. Adams
                                              ----------------------------------
                                            Its  Chairman and CEO
                                              ----------------------------------

AGREEMENT -21<PAGE>

                              AMENDMENT NUMBER FOUR TO
                            LOAN AND SECURITY AGREEMENT

     THIS AMENDMENT NUMBER FOUR TO LOAN AND SECURITY AGREEMENT, dated as of
May 4, 2000 (this "Amendment"), amends that certain Loan and Security
Agreement, dated as of June 30, 1999 (as amended from time to time, the "Loan
Agreement"), by and between TURF PARTNERS, INC., a Delaware corporation
("Borrower"), on the one hand, and COAST BUSINESS CREDIT, a division of
Southern Pacific Bank, a California corporation ("Coast"), on the other hand.
All initially capitalized terms used in this Amendment shall have the
meanings ascribed thereto in the Loan Agreement unless specifically defined
herein.

                                      RECITALS

     WHEREAS, Borrower and Coast wish to amend the Loan Agreement pursuant to
the terms and provisions set forth in this Amendment; and

     NOW, THEREFORE, the parties hereto agree as follows:

                                      AMENDMENT

     Section 1. AMENDMENT TO SECTION 2.1(b) OF THE SCHEDULE. Section 2.1(b)
of the Schedule to the Loan Agreement is hereby amended by deleting such
Section in its entirety and replacing it with the following:

         (b)  Inventory Loans in an amount not to exceed the lesser of:

                   (1)  (i) 55% of the value of Borrower's Eligible Inventory
                        (as defined in Section 1 of the Agreement) during the
                        calendar period from October 1 through May 30, except
                        for the month of May 2000 during which 65% will apply,
                        and (ii) 65% of the value of Borrower's Eligible
                        Inventory during the calendar period from June 1
                        through September 30; with Borrower's Eligible
                        Inventory is to be calculated at the lower of cost or
                        market value and determined on a first-in, first-out
                        basis, OR

                   (2)  Six Million Dollars ($6,000,000) provided, however,
                          such amount will be temporarily increased each
                          calendar year to: (i) Seven Million Dollars
                          ($7,000,000) during the months of March, April and
                          May, except for May 2000 during which the sublimit
                          will be $8,000,000; (ii) Eight Million Dollars
                          ($8,000,000) during the month of June; (iii) Nine
                          Million Dollars ($9,000,000) during the month of
                          July; and (iv) Ten Million Dollars ($10,000,000)
                          during the months of August and September.

                                       1
<PAGE>

     Section 2. CONDITIONS PRECEDENT. The effectiveness of this Amendment is
expressly conditioned upon the receipt by Coast of the following:

             (a) a modification fee in the amount of Twenty-Five Thousand
             Dollars ($25,000); and

             (b) a fully-executed copy of this Amendment.

     Section 3. ENTIRE AGREEMENT. The Loan Agreement, as amended hereby,
embodies the entire agreement and understanding between the parties hereto
and supersedes all prior agreements and understandings relating to the
subject matter hereof. Borrower represents, warrants and agrees that in
entering into the Loan Agreement and consenting to this Amendment, it has not
relied on any representation, promise, understanding or agreement, oral or
written, of, by or with, Coast or any of its agents, employees, or counsel,
except the representations, promises, understandings and agreements
specifically contained in or referred to in the Loan Agreement, as amended
hereby.

    Section 4. CONFLICTING TERMS. In the event of a conflict between the
terms and provisions of this Amendment and the terms and provisions of the
Loan Agreement, the terms of this Amendment shall govern. In all other
respects, the Loan Agreement, as amended and supplemented hereby, shall
remain in full force and effect.

    Section 5. MISCELLANEOUS. This Amendment shall be governed by and
construed in accordance with the laws of the State of California. This
Amendment may be executed in any number of counterparts, all of which taken
together shall constitute one agreement, and any party hereto may execute this
Amendment by signing such counterpart.

     IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
duly executed by their respective officers thereunto duly authorized as of
the date first above written.

                                         BORROWER:

                                         TURF PARTNERS, INC.,
                                         a Delaware corporation

                                         By /s/ William B. Adams
                                           -----------------------------------
                                            President

                                         By /s/ D. N. Sentz
                                           -----------------------------------
                                            Secretary

                                         COAST:

                                         COAST BUSINESS CREDIT,
                                         a division of Southern Pacific Bank

                                         By /s/ Phillip Goessler
                                          ------------------------------------
                                         Title Vice President
                                              --------------------------------

                                       2
<PAGE>

                                  CONSENT OF GUARANTOR

     The undersigned, as guarantor of the Obligations (as defined in that
certain Loan and Security Agreement, dated as of June 30, 1999, (as amended,
together with all supplements, addenda, exhibits and schedules thereto, the
"Agreement"), entered into by and between Coast Business Credit, a division
of Southern Pacific Bank, a California corporation ("Coast"), and Turf
Partners, Inc., a Delaware corporation ("Borrowers"), under its Continuing
Guaranty, dated as of June 30, 1999, entered into by the undersigned (the
"Guaranty"), hereby acknowledges notice of the foregoing Amendment Number
Four to Loan and Security Agreement, dated as of May 4, 2000 (the
"Amendment"), between Coast and Borrower, consents to the terms contained
therein, and agrees that its Continuing Guaranty shall remain in full force
and effect.

Dated as of May 4, 2000                        ECO SOIL SYSTEMS, INC.,
                                               a Nebraska corporation

                                               By /s/ D. N. Sentz
                                                ------------------------------

                                               Title CFO and SECRETARY
                                                    --------------------------

                                       3

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00009-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00009-of-00352.parquet"}]]