United States Department of Transportation
i
Effect of Geotechnical and Environmental Properties of Maryland Compost and Compost Amended Topsoils on Vegetation Establishment and Growth
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2022-05-02
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[PDF-1.87 MB]
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Abstract:Poor structural properties and nutrient profiles of disturbed soils often require supplemental organic matter for promoting better vegetation establishment. Compost and compost-related products, when added to soils, have proven to enhance plant growth and improve infiltration of rainwater, thereby mitigating soil erosion and excess nutrient release through surface runoff. This study commenced with interviewing 13 SHA qualified soil producers, to gain insights into the type of compost products used in their furnished topsoil to meet the SHA organic matter (OM) requirement of 4 – 8%. From these interviews, it was determined that leaf or yard waste compost was the most sought-after material for raising OM content. However, due to high demand and limited supply, the soil producers find it difficult to procure this product. Aged mulch is second in hierarchy for preference given its high OM content, low cost and wide-spread availability.
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