MnDOT Standard Specifications 3881: Fertilizer

3881.1SCOPE

Provide fertilizer for use in establishing vegetative cover and landscape plantings.

3881.2REQUIREMENTS

A General Provide a manufactured grade of inorganic or organic fertilizer produced in granular or granulated form. The fertilizer label shall contain the requirements of each type and at least the minimum

analysis shown on the Plans. The fertilizer shall consist of a blended or homogeneous form containing the specified percentages of total nitrogen, available phosphoric acid (or phosphorous), and water -soluble potash (or potassium), in that order. Fertilizer supplied in closed containers shall have the following clearly marked on the containers and in accordance with Minnesota Department of Agriculture (MDA) regulations:

(1)The weight

(2)The type of nutrients

(3)The manufacturer’s guaranteed analysis

Fertilizer supplied in bulk shall provide the above information in an invoice, delivery ticket, or written form. Include a suitable bill-of-lading with each shipment that contains the information in accordance with MDA regulations. B Types Provide fertilizer meeting the requirements for the following types, as shown on the P lans. B.1 Type 1 — Commercial Fertilizer Provide commercial fertilizer meeting the following characteristics:

(1)Consisting of dry granulated nutrients produced by mining and manufacturing

processes and commonly used in the agricultural or lawn care industries

(2)Containing nitrogen, phosphorous, and potassium

B.2 Type 2 — Phosphorous-Free Fertilizer Provide commercial fertilizer meeting the following characteristics:

(1)Consisting of dry granulated nutrients produced by mining and manufacturing

processes and commonly used in the agricultural or lawn care industries

(2)Contains nitrogen and potassium

B.3 Type 3 — Slow-Release Fertilizer Provide slow-release fertilizer with the following characteristics:

(1)Specifically processed to release nitrogen at a slow rate over a growing season

(2)Containing nitrogen, phosphorous, and potassium

(3)The primary nitrogen sources shall be in a coated, prilled urea form

(4)At least 70 percent of the nitrogen component shall be slow-release

water-insoluble nitrogen B.4 Type 4 — Natural-Based Fertilizer Provide natural-based fertilizer with the following characteristics:

(1)With at least 50 percent of the mass and at least 50 percent of the

macronutrients derived from natural or organic Material

(2)Consisting of dry granulated nutrients with a moisture content of less than

10 percent

(3)Consisting of granules with an approximate size from No. 7 Sieve to

No. 30 Sieve

(4)Derived from aerobically composted feed stock supplemented with ammonium

sulfate, ferrous sulfate, and sulfate of potash to meet the ratios shown on the Plans

(5)Free of sewage sludge, raw manure, or uncomposted organic matter

3881.3SAMPLING AND TESTING

The Department may approve the fertilizer based on the manufacturer’s guaranteed analysis and Certificate of Compliance of each type supplied. The Department reserves the right to sample and test the Material at the source, or at the Project before final acceptance. The Department will perform chemical analysis tests in accordance with the methods established by the Association of Official Agricultural Chemists .

Fertilizer in other states

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Source: Minnesota Standard Specifications for Construction, 2025 Edition. Pages 1050–0 of 1,081. View official source ↗

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3879 Agricultural Lime

3882 Mulch Material

3881Fertilizer

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