27AL2217 Sangchris Lake Attachments A thru J~1.pdf

Sangchris Lake S.P.

N 22AL2217

7/22/2026 Atrazine Buffer IDNR AG Lease

Site Boundary

Crop Field

Sangamon County

Sangamon County

ATTACHMENT A

7/22/2026 Atrazine Buffer IDNR AG Lease

Site Boundary

Crop Field

Christian County

7/22/2026 Atrazine Buffer IDNR AG Lease

Site Boundary

Crop Field

7/22/2026 Atrazine Buffer IDNR AG Lease

Site Boundary

Crop Field

7/22/2026 Atrazine Buffer IDNR AG Lease

Site Boundary

Crop Field

7/22/2026 Atrazine Buffer IDNR AG Lease

Site Boundary

Crop Field

7/22/2026 Atrazine Buffer IDNR AG Lease

Site Boundary

Crop Field

Previous Contract

Old Field #

New Field

# Acres 2026 2027 2028 2029 2030 2031

7228-3 7228-3 12.30 CORN-COVER CROP SOYBEAN CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

7228-5 7228-5 13.63 CORN-COVER CROP SOYBEAN CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

7228-6 7228-6 6.60 SOYBEAN CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

CORN-COVER

CROP

7230-2 7230-2 24.90 CORN-COVER CROP SOYBEAN CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

7230-1 7230-1 17.44 SOYBEAN CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

CORN-COVER

CROP

7219-1 7219-1 13.50 CORN SOYBEAN CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

7219-2 7219-2 23.40 SOYBEAN-COVER CROP CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

CORN-COVER

CROP

7219-3 7219-3 12.00 CORN SOYBEAN CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

7219-4 7219-4 15.80 CORN SOYBEAN CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

7219-0 7219-5 8.10 CORN SOYBEAN CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

7219-6 7219-11 5.76 SOYBEAN CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

CORN-COVER

CROP

5793-0 5793-2 4.00 SOYBEAN CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

CORN-COVER

CROP

5793-1 5793-1 10.50 CORN-COVER CROP SOYBEAN CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

5793-3 5793-3 17.00 SOYBEAN-COVER CROP CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

CORN-COVER

CROP

7222-5 7222-5 3.90 CORN SOYBEAN CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

7222-6 7222-6 9.00 SUNFLOWER CORN SOYBEAN CORN SUNFLOWER CORN

5796-2 5796-9 10.92 SUNFLOWER CORN SUNFLOWER CORN SUNFLOWER CORN

5796-3 5796-3 21.73 SOYBEAN-COVER CROP SUNFLOWER CORN SOYBEAN CORN SUNFLOWER

5796-4 5796-4 25.17 CORN SOYBEAN CORN SUNFLOWER CORN SOYBEAN

5796-5 5796-5 13.68 SUNFLOWER CORN SUNFLOWER CORN SOYBEAN CORN

5795-6 5795-11 21.50 CORN-COVER CROP SOYBEAN CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

5795-7 5795-7 15.40 SOYBEAN-COVER CROP CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

CORN-COVER

CROP

3855-3A 3855-3A 18.20 CORN-COVER CROP IDLE CORN-COVER CROP IDLE

CORN-COVER

CROP

IDLE

3855-3B 3855-3B

19.60 CORN-COVER CROP IDLE

CORN-COVER CROP IDLE

CORN-COVER

CROP IDLE

3855-3C 3855-3C 35.40 CORN-COVER CROP IDLE CORN-COVER CROP IDLE

CORN-COVER

CROP

IDLE

3855-3D 3855-3D 30.70 CORN-COVER CROP IDLE CORN-COVER CROP IDLE

CORN-COVER

CROP

IDLE

3855-3E 3855-3E 22.60 CORN-COVER CROP IDLE CORN-COVER CROP IDLE

CORN-COVER

CROP

IDLE

3855-27 3855-27 7.00 CORN-COVER CROP IDLE CORN-COVER CROP IDLE

CORN-COVER

CROP

IDLE

3855-26 3855-26 4.80 CORN-COVER CROP IDLE CORN-COVER CROP IDLE

CORN-COVER

CROP

IDLE

3855-24 3855-24 10.30 CORN-COVER CROP IDLE CORN-COVER CROP IDLE

CORN-COVER

CROP

IDLE

DOVE FIELD #

Total Acres 454.83

Year

Sangchris Lake SP 27AL2217 Christian County

See associated map for field locations

RED INDICATES FIELD WAS ADJUSTEED FOR ATRAZINE BUFFER

ATTACHMENT B

Crop 2027 2028 2029 2030 2031

CORN-COVER CROP 89.60 284.73 89.60 284.73 89.60

SOYBEAN 161.30 98.60 157.86 103.28 161.30

SOYBEAN-WHEAT 0.00 0.00 0.00 0.00 0.00

CORN 33.60 46.90 33.60 46.90 33.60

0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00

Total Leased Acres 284.50 430.23 281.06 434.91 284.50

IDLE 148.60 0.00 148.60 0.00 148.60

SUNFLOWER 21.73 24.60 25.17 19.92 21.73

0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00

Total Non Leased

Acres 170.33 24.60 173.77 19.92 170.33

Total Acres 454.83 454.83 454.83 454.83 454.83

Previous Contract

Old Field #

New Field

Acres 2026 2027 2028 2029 2030 2031

6714-5A 6714-5A 10.20 SOYBEAN CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

CORN-COVER

CROP

6714-5B 6714-5B 9.84 SUNFLOWER CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

CORN-COVER

CROP

6708-2 6708-2 7.30 CORN SUNFLOWER CORN-COVER CROP SUNFLOWER

CORN-COVER

CROP

SUNFLOWER

5800-1 5800-1 32.40 CORN CORN-COVER CROP SOYBEAN-WHEAT

CORN-COVER

CROP

SOYBEAN-WHEAT

CORN-COVER

CROP

5800-3 5800-3A 29.70 CORN SOYBEAN-WHEAT CORN-COVER CROP SOYBEAN-WHEAT

CORN-COVER

CROP

SOYBEAN-WHEAT

5800-0 5800-3B 31.00 SOYBEAN-COVER CROP CORN-COVER CROP SOYBEAN-WHEAT

CORN-COVER

CROP

SOYBEAN-WHEAT

CORN-COVER

CROP

5800-4 5800-4 36.40 CORN SOYBEAN-WHEAT CORN-COVER CROP SOYBEAN-WHEAT

CORN-COVER

CROP

SOYBEAN-WHEAT

6714-0 6714-0 10.20 CORN SUNFLOWER CORN-COVER CROP SUNFLOWER

CORN-COVER

CROP

SUNFLOWER

6714-7A 6714-7A 15.83 CORN SUNFLOWER CORN-COVER CROP SUNFLOWER

CORN-COVER

CROP

SUNFLOWER

6714-7B 6714-7B 13.49 SOYBEAN CORN-COVER CROP SUNFLOWER

CORN-COVER

CROP

SUNFLOWER

CORN-COVER

CROP

6714-9 6714-9 8.00 CORN SOYBEAN CORN-COVER CROP SOYBEAN

CORN-COVER

CROP

SOYBEAN

7228-2 7228-12 12.61 SUNFLOWER CORN-COVER CROP SUNFLOWER

CORN-COVER

CROP

SUNFLOWER

CORN-COVER

CROP

DOVE FIELD #

GOOSE FIELDS

Total Acres 216.97

Crop 2027 2028 2029 2030 2031

CORN-COVER CROP 109.54 107.43 109.54 107.43 109.54

SOYBEAN 8.00 20.04 8.00 20.04 8.00

SOYBEAN-WHEAT 66.10 63.40 66.10 63.40 66.10

CORN 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00

Total Leased Acres 183.64 190.87 183.64 190.87 183.64

0.00 0.00 0.00 0.00 0.00

IDLE 0.00 0.00 0.00 0.00 0.00

SUNFLOWER 33.33 26.10 33.33 26.10 33.33

0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00

Total Non Leased

Acres 33.33 26.10 33.33 26.10 33.33

Total Acres 216.97 216.97 216.97 216.97 216.97

Sangamon County See associated map for field locations Year

Sangamon County Acres

Year

RED INDICATES FIELD WAS ADJUSTEED FOR ATRAZINE BUFFER

Christian County Acres

Year

671.80 Crop 2027 2028 2029 2030 2031

CORN-COVER CROP 199.14 392.16 199.14 392.16 199.14

SOYBEAN 169.30 118.64 165.86 123.32 169.30

SOYBEAN-WHEAT 66.10 63.40 66.10 63.40 66.10

CORN 33.60 46.90 33.60 46.90 33.60

0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00

Total Leased Acres 468.14 621.10 464.70 625.78 468.14

IDLE 148.60 0.00 148.60 0.00 148.60

SUNFLOWER 55.06 50.70 58.50 46.02 55.06

0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00

Total Non Leased

Acres

203.66 50.70 207.10 46.02 203.66

Total Acres 671.80 671.80 671.80 671.80 671.80

Total Leased Acres 875.46 722.50 878.90 717.82 694.80

Total Cover Crop Acres 265.24 455.56 265.24 455.56 265.24 % Cover Crop 0.30 0.63 0.30 0.63 0.31

Cover Crop Percentages

Total Contract Leased Acres

AGRICULTURAL/WILDLIFE & HABITAT LAND LEASE

Lease Requirements and Services

Sangchris Lake SP

27AL2217

The list below includes those actions required as part of the lease in addition to lease payments. Non- adherence to cropping plan and lease requirements and services may be cause for termination of the farm lease.

• DOUBLE CROPPING PROHIBITED

• IDNR may require the Lessee under this contract to leave all or a certain portion of the crops in the field standing without being harvested as determined below. If Lessee fails to comply with this requirement, IDNR will receive the rent per acre from Lessee as set forth in Section 2.1.2 for each acre the Lessee harvested in violation of the cropping plan.

• If Lessee fails to follow the detailed services and or dates listed in the Required Services, IDNR may cause these services to be performed at Lessee’s cost. IDNR is not required to provide notice to Lessee prior to causing the services to be performed if Lessee has not completed the services as listed in the Required Services. Services performed shall be in accordance with the University of Illinois established rates located at http://www.farmdoc.illinois.edu/manage/machinery/ or the Iowa State University Extension and Outreach Iowa Farm Custom Rate Survey located at https://www.extension.iastate.edu/agdm/crops/pdf/a3-10.pdf

• If field conditions (due to weather) do not allow for the designated crop (see cropping plan) to be planted by the counties crop insurance final planting date (as determined by the USDA Risk Management Agency *), the Lessee must contact the Site Superintendent (by email). The Lessee shall be allowed to plant an alternative crop or may be required to plant a cover crop for soil health, soil and water conservation, and wildlife benefits. Cover crop selection will be reviewed and approved by the Site Superintendent, District Wildlife Biologist, and Agricultural Lease Program Manager prior to planting. The field may be left idle if prior approved by the Site Superintendent, District Wildlife Biologist, and Agricultural Lease Program Manager. In the event a field is to be left idle, the following management practices are prohibited without approval; mowing, tillage, chemical application and/or fertilizer application.

• * https://www.rma.usda.gov/rmalocal/illinois

ATTACHMENT B

http://www.farmdoc.illinois.edu/manage/machinery/ https://www.extension.iastate.edu/agdm/crops/pdf/a3-10.pdf https://www.rma.usda.gov/rmalocal/illinois

Required Action List

Field Number Action Crop Year

Acres Applied

Is IDNR providing materials?

(Y/N)

IDNR

materials to be provided (if applicable)

All

Lessee shall not use any neonicotinoid treated soybean seed with Imidacloprid, Thiamethoxam, Clothianidin, Acetamiprid, Thiacloprid, Dinotefuran or Nitempyram insecticides

2027 - 2031 All NA NA

All The use of Dicamba or its equivalent is not allowed.

2027 - 2031 All NA NA

All Lessee MUST follow and adhere to label directions when applying Atrazine herbicide or their equivalent

2027 -

All NA NA

Cover Crop Fields

Plant a minimum of one species from the approved seed list on designated fields as indicated on the cropping plan.

• Approved seeding methods; pre-harvest aerial or broadcast (highboy), drill or broadcast post-harvest.

• Cannot terminate prior to March 15, cannot roller crimp past May 15.

2027 -

Designated Cover Crop

Fields

NA NA

Dove Fields - Corn and Corn- Cover Crop Fields

Plant 90-day corn in designated fields as indicated in this table.

• 90-day corn fields shall ONLY be harvested prior to the opening of the site’s dove hunting program in consultation with Site Superintendent and DWB.

Crops remaining in the 90-day corn fields shall be harvested upon the close of the site’s dove hunting program.

2027 -

Refer to Leased Acres

Table for acreage in

90-day corn for each Crop Year

N/A N/A

Sunflower Fields

Plant Clearfield Sunflower at population 29,000 seeds per acre no later than May 1 of each crop year. No dwarf or semi-dwarf varieties allowed. 89-day or less to-maturity date varieties, only. Apply Beyond chemical per label instructions, mow sunflowers fields per DWB/SS instructions between 8/15 and 8/25 of each year.

2027 -

Refer to Leased Acres

Table for acreage in sunflowers for each Crop Year

No

N/A

Dove Fields (Sunflowers)

The Vendor will be responsible for all normal cost of sunflower production, including the sunflower seed and chemical, as well as any associated activities such as mechanical cultivation, if necessary. In addition, the Vendor will be responsible for normal chemical and fertilizer application associated with

2027 -

Varies by year; refer to Cropping

Plan

No N/A

Field Number Action Crop Year

Acres Applied

Is IDNR providing materials?

(Y/N)

IDNR

materials to be provided (if applicable) sunflower production. The chemical system will consist of Clearfield herbicide.

Dove Fields (Sunflower)

The Vendor shall apply Prowell or Treflan at the time of planting according to weed pressure. Fertilizer shall be applied utilizing soil test results.

2027 -

Varies by year; refer to Cropping

Plan

No N/A

Fields 5800-0 5800-1 5800-3 5800-4

Plant wheat as designated after soybeans.

The wheat will be used as a cover crop and will not be harvested. 2027 -

Varies by year; refer to Cropping

Plan

No N/A

Other wildlife related work items

The site is a public use site and will be managed as such. The Vendor will be asked to provide labor or services in lieu of cash payment. Upon performing items such as those listed, below, the Vendor shall be allowed to deduct the expense of such activities from rental payment using U of I Extension rates at http://www.farmdoc.lilinois.edu/manage/ to determine the value of deduction.

Some work items are highlighted below:

1) Pumping water to the Goose management area

2) Mowing of fire breaks and post-Spring burn areas

3) Pumping of crappie rearing pond.

4) Plowing snow at boat ramps, parking lots, etc.

5) Herbicide application beyond the scope of regular crop production.

6) Mowing not specified in Terms, above, and beyond the scope of regular crop production.

Other items as requested by the District Wildlife Biologist and Site Superintendent

2027 -

Varies by year No

IDNR may supply pumps for Items #1 and #3

Attachment C Acceptable Services

State of Illinois IFB Contract: Acceptable Services V.23.4

ACCEPTABLE SERVICES IN LIEU OF CASH PAYMENTS

All lease items are an example and are non-inclusive items (items MUST be approved by the Site Superintendent, District Wildlife Biologist and Agricultural Lease Program Manager) to be used by the Lessee on/or for the benefit of the lease site.

The following service items (labor) are considered acceptable as the Department’s lease payment if provided directly by the Lessee, using equipment listed on the equipment list (Attachment G) contained within the prospective Lessee’s bid packet. The Comprehensive Environmental Review Process (CERP) must be utilized for any management activity that could potentially affect threatened & endangered species-natural areas and nature preserves, wetlands, cultural resources and other management activity that affects soil disturbance, water flow including quality and air quality. Refer to the Department’s CERP manual for applicable exemptions and procedures (will be provided to the awarded Lessee upon request). If the Lessee is requested to perform any of the acceptable services listed below, the Lessee shall be reimbursed in accordance with the University of Illinois established rates located at http://www.farmdoc.illinois.edu/manage/machinery/ or or Iowa State Extension at 2026 Iowa Farm Custom Rate Survey, https://www.extension.iastate.edu/agdm/crops/pdf/a3-10.pdf. Lessee shall receive prior Agency approval for acceptable service projects which may exceed an accumulative total of 10% of the lease value or $10,000.

Application of Chemicals - purchased by the site for control of noxious, exotic and invasive weeds, vegetation control, brush and general agricultural purposes. The Lessee shall provide a copy of his current valid state applicators license to Site Manager.

Clearing Projects- renovation of wildlife management lands by removing brush or trees.

Construction and Maintenance - of field access roads for wildlife management purposes.

Installation or Maintenance of Culverts - for field access roads, water management and hunter parking lots. (Lessee must obtain all applicable permits are acquired from State, county or township jurisdictions.)

Fertilizer & Agriculture Lime Application - on food plots, sunflower fields, waterfowl management fields, grass & legume and other wildlife management plantings.

Field Tillage, Preparation & Planting Services - provided for wildlife food, legume and grass plantings.

Labor - for boundary fencing, to install boundary “No Hunting” signs and regulations signs, controlling noxious weeds or brush, for repair and maintenance of water control for wetland management programs (i.e., tubes, gates, emergency pump rental), brush-pile construction, fire and hunter access trails, removal of fences on or along crop fields, tree planting and direct seeding preparation and planting.

Mowing - for specific wildlife management purposes; access, vegetation control, hunting strips and field renovation.

Minor Hazard Removal – removal of stumps, foundations or equipment.

Repair and Maintenance of Drainage Structures - (terraces, waterways, water control structures, trenches, etc.)

http://www.farmdoc.illinois.edu/manage/machinery/

Attachment C Acceptable Services

State of Illinois IFB Contract: Acceptable Services V.23.4

Hauling Rock and/or Spreading of Rock - purchased by the Agency.

Timber Stand Improvement (TSI) - TSI labor provided by the Lessee to benefit wildlife management objectives as prescribed in the wildlife management plan (will be provided to awarded Lessee upon request).

Wetland Developments - labor required to construct wetlands and ponds planned and approved through the site’s annual plan of work process.

RE: Irrevocable Letter of Credit Number: _ Date: _ Expiration Date:

IDNR Lease Number: ________

To Whom it may Concern:

We here by establish in your favor our Irrevocable Letter of Credit No. for the following specific payment:

The sum of for cash rent

Up to the sum of for real Estate Taxes, penalties, and interest.

We hereby authorize you to draw on us for the account of up to an amount of _ with an expiration date of January 31, 2028, for the 2027 CASH RENT and an estimated amount of _ with an expiration date of January 31, 2029, for the 2027 REAL ESTATE TAXES due and payable in 2028.

Available by your draft(s) at sight accompanied by the following documents:

Your signed statement certifying "The amount drawn represents sums owed by _

Draft(s) drawn under this credit must be marked:

Drawn under the Bank Letter of Credit No. dated ,20_ .

We hereby agree with you that all draft(s) drawn under and in compliance with the terms of this credit will be duly honored on delivery of documents as specified if presented at this office on or before of January 31, 2028, for the 2027 CASH RENT and January 31, 2029, for the 2027 REAL ESTATE TAXES due and payable in 2028.

Sincerely, Attachment D

Letter of Irrevocable Credit "Sample"

Program Manager Agriculture/Wildlife & Habitat Lease Management Il Department of Natural Resources One Natural Resources Way Springfield, Illinois 62702

Attachment E Rate of Chemical and Fertilizer Application Forms

State of Illinois IFB Contract: Rate of Chemical and Fertilizer Forms V.23.4

Agricultural Chemical Application Report

Date of Application

Product Trade Name

Application Rate Crop Treated Location where product was used/Field Number

Name and Address of applicator and (if applicable) supervisor

Attachment E Rate of Chemical and Fertilizer Application Forms

State of Illinois IFB Contract: Rate of Chemical and Fertilizer Forms V.23.4

Agricultural Fertilizer Application Report

Soil Test Results Date of Application Field Number where applied

Application Rate Per Acre

Fertilizer/Lime Applied

Attachment F Agriculture Seed Application Report

State of Illinois IFB Contract: Agriculture Seed Application Report V.23.4

Field Number where applied

Seed Brand and Variety #

Attachment G Equipment List

State of Illinois IFB Contract: Equipment List V.23.4

YEAR MAKE MODEL QUANTITY

Attachment H Agronomy Handbook

State of Illinois IFB Contract: Agronomy Handbook V.23.4

The Agronomy Handbook can be accessed at the following web address:

http://extension.cropsci.illinois.edu/handbook/.

Relevant information from the Handbook related to soil levels is also attached here in “Attachment H”.

http://extension.cropsci.illinois.edu/handbook/

State of Illinois IFB Contract: Agronomy Handbook V.23.4

IDNR Ag Lease - Min Soil Test Levels for Ag Fields

Soil pH Maintenance Levels – 6.2 goal, 6.0 – 6.5 acceptable

Phosphorus (P) Maintenance Levels Soil P Supplying Regions

Units High Medium Low

Minimum Soil Level 30 40 45 lbs/ac

Recommended Levels Corn/Beans 40 45 50 lbs/ac

Recommended Levels Wheat/Oats 60 67.5 75 lbs/ac

Potassium (K) Maintenance Levels Soil K Exchange Capacity Regions

Units High (>12 mEq) Low (<12 mEq)

Minimum Soil Level 300 260 lbs/ac

Above with No Addition 400 360 lbs/ac

Levels >100 lb. above Min Replace Yield K Replace Yield K lbs/ac

Levels Below Minimum Replace Yield K + Build to Min

• Adjustments needed based on location and timing of sampling. See Attachments.

State of Illinois IFB Contract: Agronomy Handbook V.23.4

Phosphorus (P) Maintenance Levels

Illinois Agronomy Handbook (Ch 8, 100)

Minimum soil test levels required to produce optimal crop yields vary depending on the crop to be grown and the soil’s P-supplying power. Near maximal yields of corn and soybeans are obtained when levels of available P are maintained at 30, 40, and 45 pounds per acre for soils in the high, medium, and low P-supplying regions, respectively. Since these are minimal values, to ensure soil P availability will not restrict crop yield it is recommended that soil test results be built up to 40, 45, and 50 pounds per acre for soils in the high, medium, and low P-supplying regions, respectively. This is a practical approach because P is not easily lost from the soil, other than through crop removal or soil erosion. To compensate for the higher P requirements of wheat and oats, it is suggested that 1.5 times the amount of expected P removal be applied prior to seeding these crops.

When soil test levels are between the minimum and 20 pounds above the minimum (40 to 60, 45 to 65, and 50 to 70 for the high, medium, and low P-supplying regions, respectively), apply enough to replace expected removal by the crop. When soil test levels are below the desired values (40, 45, and 50 for the high, medium, and low P-supplying regions, respectively), it is suggested that enough fertilizer be added to build the test to the desired goal and to replace what the crop will remove (as described in the previous paragraph). At this test level, the yield of the crop will be affected by the amount of P applied that year.

On average, Illinois soils require 9 pounds of P2 O5 per acre to increase the P1 soil test by 1 pound. The recommended rate of buildup for P is thus nine times the difference between the soil test goal and the actual soil test value. For a typical 4-year buildup program, divide the rate by 4 to determine the annual rate. Because the 9-pound rate is an average for Illinois soils, some soils will fail to reach the desired goal in 4 years with P2 O5 applied at this rate, and others will exceed the goal.

Potassium (K) Maintenance Levels

State of Illinois IFB Contract: Agronomy Handbook V.23.4

Illinois Agronomy Handbook (Ch 8, 103)

Soils with a CEC less than 12 milliequivalents per 100 grams are classified as having low capacity, while soils with values equal to or greater than 12 milliequivalents per 100 grams are considered to have high capacity. Tests on soil samples that are taken before May 1 or after September 30 should be adjusted downward as follows: subtract 30 for the dark-colored soils in central and northern Illinois; subtract 45 for the light-colored soils in central and northern Illinois and for fine-textured bottomland soils; subtract 60 for the medium- and light-colored soils in southern Illinois.

Minimum soil test levels required to produce optimal crop yields vary depending on the crop to be grown and the soil’s CEC. As with P, the only significant loss of soil-applied K is through crop removal or soil erosion, so to ensure that K availability will not limit crop yields it is recommended that soil test levels be slightly higher than that required for maximum yield. For corn and soybean, it is recommended to have 260 and 300 pounds of exchangeable K per acre for soils in the low and high CEC regions, respectively.

No K additions are suggested if test levels are above 360 and 400 for the low and high CEC regions, unless crops that remove large amounts of K (such as alfalfa or corn silage) are being grown. When soil test levels are between the minimum and 100 pounds above the minimum (260 to 360 and 300 to 400 for the low and high capacity, respectively), apply enough to replace what the crop to be grown is expected to remove using values from Table 8.6. When soil test levels are below the desired values (260 and 300 for the low and high capacity, respectively), it is suggested that enough fertilizer be added to build the test to the desired goal and to replace what the crop will remove (as described in the previous paragraph). On average most Illinois soils require 4 pounds of K2 O per acre to increase the K exchangeable soil test by 1 pound. The recommended rate of buildup for K is thus 4 times the difference between the soil test goal and the actual soil test value. For a typical 4-year buildup program, divide the rate by 4 to determine the annual rate.

N 27AL2217

Soil Sample Locations

6/2/2026 IDNR AG Lease

Soil Sample Locations Site

Boundary Crop Field

ATTACHMENT I

Soil Sample Locations

6/2/2026 IDNR AG Lease

Soil Sample Locations Site

Boundary Crop Field

Soil Sample Locations

6/2/2026 IDNR AG Lease

Soil Sample Locations Site

Boundary Crop Field

Soil Sample Locations

6/2/2026 IDNR AG Lease

Soil Sample Locations Site

Boundary Crop Field

Soil Sample Locations

6/2/2026 IDNR AG Lease

Soil Sample Locations Site

Boundary Crop Field

Soil Sample Locations

6/2/2026 IDNR AG Lease

Soil Sample Locations Site

Boundary Crop Field

Soil Sample Locations

6/2/2026 IDNR AG Lease

Soil Sample Locations Site

Boundary Crop Field

Cover Crop Programs

EQIP - USDA NRCS

• Financial assistance for cover crop establishment

• Cost-share for addressing resource concerns

• Conservation planning with NRCS staff

• Improves soil health and organic matter

• Reduces erosion and nutrient loss

• Supports water quality improvements

• Can be used with other conservation practices

• Contact: Local NRCS Service Center

CSP - USDA NRCS

• Annual stewardship payments

• Rewards existing conservation efforts

• Supports advanced cover crop management

• Encourages multi-species cover crop systems

• Five-year contracts with renewal opportunities

• Improves long-term farm resilience

• Requires enhancement of existing conservation practices

• Contact: Local NRCS Service Center

Fall Covers for Spring Savings - IDOA

• Up to $5 per acre crop insurance premium discount

• Available on eligible cover crop acres

• Designed for acres not receiving EQIP or CSP incentives

• Requires FSA certification of cover crop acres

• Money is applied direction to crop insurance policy

• First-come, first-served enrollment

• Enroll easily Online once program opens in December

• https://agr.illinois.gov

FLASH Groups - American Farmland Trust

• Farmer-led conservation networks

• Peer-to-peer learning opportunities

• Payment assistance for cover crop seed mixes and establishment/application through participating FLASH initiatives

• Supports practical cover crop adoption

• Questions or participation: American Farmland Trust

• farmland.org/flash

• ckula@farmland.org

Benefits of Cover Crops: Improve Soil Health • Protect Water Quality • Reduce Erosion • Increase Drought Resilience • Improve Long-Term Productivity

ATTACHMENT J

North Central

South

North

South Central

Illinois Cover Crop Quick Reference Guide

*Information taken from Midwest Cover Crop Council.

Planting date guidelines are based on a single county in each zone.

Zones are determined based on 2023 USDA Plant Hardiness zone map.

For the most specific recommendation for your location, please visit:

https://covercroptool.midwestcovercrops.org/covercroptool/

A general overview of planting information for common cover crops.

Questions? Contact Torey Colburn, AFT Midwest Conservation Agronomist tcolburn@farmland.org 815-315-0192

ATTACHMENT J

letter of credit example 2027 crop year

27AL2217 Sangcxhris lake S.P. Soil Samples Map