Orange County NC Website
DocuSign Envelope ID: F52521E7-10C1-43F9-B62F-C1E599A5D572 <br /> Provisions for soils test during and/or after initial grading is complete shall <br /> be included on the approved plan,in the approved construction sequence,and <br /> on the bid item list utilized for the project. If you did not obtain a soil test: <br /> Follow these recommendations for all grasses except centipedegrass. <br /> 1.Apply 75 pounds of ground limestone per 1,000 sq. ft. <br /> 2.Apply a starter type fertilizer(one that is high in phosphorus)based on the <br /> type of grass and planting method.Fertilizer bags have a three-number system <br /> indicating the primary nutrients, such as 8-8-8 or 5-10-10. These numbers <br /> denote the N-P-K ratio—the percentage of each nutrient in a fertilizer. The <br /> percentages are always noted in the following order: <br /> N Nitrogen for green color and growth. <br /> P 2 0 5 Phosphorus for good establishment and rooting. <br /> K20 Potassium to enhance pest and environmental stress tolerance. <br /> Some common examples of starter type fertilizers required for a 1,000 sq. <br /> ft. area include 40 pounds of 5-10-10, 20 pounds of 10-20-20, or 16 pounds <br /> of 18-24-6. For sandy soils, typical to coastal plain and sandhills of North <br /> Carolina,fertilizer rates should be increased by 20 percent. <br /> Where available, it is recommended that the design professional specify <br /> organic compounds that meet the fertilization requirements, pH and other <br /> element requirements. Initial studies have indicated that these compounds <br /> have a more positive effect on the environment than some of the synthetic <br /> compounds used to manufacture inorganic fertilizers. These materials are <br /> readily available in the commercial trade as well as found in recycled yard <br /> waste debris, sewerage sludge, lime-stabilized sludge and animal manures. <br /> Materials proposed for use must be industry certified and/or privately tested <br /> and certified to be acceptable for proposed areas of use and application prior <br /> to approval. <br /> MULCHES AND TACKING AGENTS <br /> Mulches and tacking agents may be required or necessary to protect a seedbed's <br /> disturbed surface until the seed can germinate and provide the required <br /> protection from erosion. Selection of the materials used in this application <br /> should be based on their ability to hold moisture in the soil,as well as protect <br /> exposed soil from rainfall, storm water runoff, and wind. The availability of <br /> the selected material and the means to apply it are critical factors to consider <br /> when planning for the stabilization of any disturbed area. The mulch must <br /> cover a minimum of eighty(80)percent of the soil surface and must be secured <br /> by a tacking agent,crimping,or protective biodegradable netting.Netting that <br /> incorporates plastic mesh and/or plastic twine should not be used in wetlands, <br /> riparian buffers or floodplains due to the potential of small animal mortality. <br /> See Section 6.14 for detailed specifications and product applications. <br /> SOIL BLANKETS <br /> Soil blankets can be an acceptable and effective method of temporary sediment <br /> and erosion control in lieu of nurse crops. See Section 6.17 of the manual for <br /> descriptions of this product and how it can be used in conjunction with this <br /> section. In absence of mulches and tracking agents other means of protection <br /> may be necessary and required. <br /> 6.11.6 Rev.5i08 <br />