643FERTILIZER FOR GRASSES

New Hampshire Department of Transportation Standard Specifications – 2016 Description

1.1This work shall consist of furnishing and applying an initial app lication of fertilizer on a new surface and one or more

refertilizations after the growth has progressed sufficiently, all as shown on the plans or as ordered. Materials

2.1Fertilizer shall be a standard commercial grade fertilizer conforming to all State and Federal rules and regulations and to the

standards of the Association of Official Agricultural Chemists. The analysis shall represent respective percentages of nitro gen, phosphoric acid, and potash. 2.1.1 Except as permitted, the analysis ratio shall be 1:1:1 for initial application and 3:1:2 for refertilization application. The analyses in Table 643 -1 are preferred. Permission to furnish fertilizer with an analysis varying from Table 643 -1 will be based upon reasons given in writing by the Contractor requesting such variances. Table 643-1 - Fertilizer Information Percent of Nutrients

Initial

Refertilization Minimum Application Rate Lbs Per 1,000 ft2 Measurement Factor 10-10-10 20.0 1.0 15-15-15 13.4 1.5 19-19-19 10.5 1.9 10-3-6 20.0 1.0 12-2-8 16.7 1.2 12-4-8 16.7 1.2 2.1.2 A minimum of 30 percent of the nitrogen in fertilizer used for refertilization shall be water insoluble (WIN).

2.2All fertilizer shall be identified by labels and shall show the following:

2.2.1 When furnished as a liquid, the fertilizer shall be delivered in an appropriate container or vehicle, and shall conform to the pertinent sections of the Fertilizer Rules and Regulations issued by the New Hampshire Department of Agriculture. Construction Requirements

3.1Fertilizer shall be uniformly applied by either the dry or hydraulic method specified in 644.3.5. When the dry method is

used, special care shall be taken to thoroughly work the fertilizer into the soil. 3.1.1 The rate of application shall be based upon the nitrogen content and shall be a rate between 2.0 and 2.2 pounds of nitrogen per 1,000 square feet. See Table 643-1 for typical application rates.

3.2Unless otherwise ordered, not less than three months shall elapse between the initial fertilization and the refertilization. No

refertilization ordinarily will be allowed between November 1, or when the ground has frozen, and the following April 1, or between June 1 and the following September 1. Refertilization will be allowed between August 15 and 31 only when it is determined that the permanent grasses have developed well and few weeds have appeared, and such refertilization will not tend to promote the growth of noxious weeds. Method of Measurement

4.1Fertilizer will be measured by the pound or by the ton, and in accordance with 109.01, on the basis of weight slips or delivery

slips forwarded to the Engineer, but not to exceed the maximum rate specified or ordered. Measurements by the ton will be made to the nearest 0.01 of a ton. 4.1.1 The quantity for payment will be the product of the accepted quantity used and the appropriate measurement factor from Table 643-1.

New Hampshire Department of Transportation Standard Specifications – 2016 Basis of Payment

5.1The accepted quantity of fertilizer will be paid for at the Contract unit price per pound or per ton complete in place.

Pay items and units:

643.11Fertilizer for Initial Application Pound

643.12Fertilizer for Initial Application Ton

643.21Fertilizer for Refertilization Pound

643.22Fertilizer for Refertilization Ton

New Hampshire Department of Transportation Standard Specifications – 2016

Description

This work shall consist of furnishing and sowing grass seed as shown on the plans or as ordered.

Materials

General.

2.1.1 Grass seed shall meet the requirements of the New Hampshire Agricultural and Vegetable Seeds Law. As specified in the law, the mixture shall include no “ primary noxious weed seeds”. 2.1.2 Grass seed of the specified mixtures shall be furnished in fully labeled, standard, sealed containers. Official seed tags and shipment invoices from seed suppliers shall be furnished to the Engineer with each seed delivery on the project. 2.1.3 Percent germination and purity of each seed type in the mixture and weed seed content of the mixture shall be clearly stated on the label. 2.1.4 Seed shall be subject to the testing provisions of the Association of Official Seed Analysts. The month and year of test shall be clearly stated on the label. 2.1.5 Seed may be tested after it has been delivered to the project to verify the seed tag information. 2.1.6 Seed which has become wet, moldy, or otherwise damaged will not be acceptable.

Park seed Type 15 shall be used on loam areas. This seed mixture shall conform to Table 644- 1.

Table 644-1 - Park Seed Type 15 Kind of Seed Minimum Purity (%) Minimum Germination (%) Pounds/Acre (Total 120 lbs) Creeping Red Fescuec 96 85 40 Perennial Ryegrassa 98 90 50 Kentucky Bluegrassb 97 85 25 Redtop 95 80 5

2.3Slope seed (WF) Type 45 shall be used for all slope work and shall conform to Table 644-2 unless amended by the Engineer

to suit special local conditions encountered. Table 644-2 – Slope Seed (WF) Type 45 Kind of Seed Minimum Purity (%) Minimum Germination (%) Pounds/Acre (Total 95 lbs) Creeping Red Fescue c 96 85 35 Perennial Ryegrass a 98 90 30 Redtop 95 80 5 Alsike Clover 97 90 e 5 Birdsfoot Trefoil d 98 80 e 5 Lance-Leaved Coreopsis 95 80 4 Oxeye Daisy 95 80 3 Blackeyed Susan 95 80 4 Wild Lupine 95 80 4 2.3.1 Slope seed Type 44 shall only be used where specified on the Plans, or as ordered, and shall conform to Table 644- 3. Table 644-3 - Slope Seed Type 44 Kind of Seed Minimum Purity (%) Minimum Germination (%) Pounds/Acre (Total 80 lbs) Creeping Red Fescuec 96 85 35 Perennial Ryegrassa 98 90 30 Redtop 95 80 5 Alsike Clover 97 90 (e) 5 Birdsfoot Trefoild 98 80 (e) 5