The main type of soil in the Delaware Run watershed is the Berks-Weikert-Bedington series, which is a silt loam with shale.
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It is topped with a crumbly, layer of brownish-red silt loam over a loose subsoil of reddish-brown loam with some gravel.
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The Chenango Series is a silt loam that occurs, among other places, in the southeastern and southern corners of the watershed.
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The soil on East Branch Briar Creek near Briar Creek Lake is of the Holly Series, which is a silt loam.
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The top of the Leck Kill-Meckesville-Calvin series in the watershed is dark brown silt loam with small pieces of sandstone and shale.
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Because of the surface layer of silt loam and slow permeability in the clayey subsoil, the soils are ideal for rice production.
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Walnut grows best on sandy loam, loam, or silt loam type soils but will also grow well on silty clay loam soils.
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Depending on the proportions, it can be called loam, sandy loam, sandy clay loam, clay loam, silty clay loam or silt loam.
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Upland areas are mostly Mahoning silt loam with local inclusions of Ellsworth, Fitchville, Glenford and Loudonville silt loams, and Chili and Haskins loams.
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You see, Harney silt loam, a very productive crop-growing soil, is found not near Kansas City, but in the center of the state.