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Berkshire (soil)
Berkshire soil series is the name given to a well drained loam or sandy loam soil which has developed on glacial till in parts of southern Quebec, eastern New York State and New England south to Massachusetts. It belongs to the podzol soil group and is one of the most important soils in its area of occurrence, supporting extensive forests and a fair number of farms. Many Berkshire soils lack the eluvial (E) horizon characteristic of podzols because they have a history of being cleared for cultivation.
==Geology==
The deep glacial till which provides the foundation of the Berkshire series contains material derived from mica schist with fragments of gneiss, granite and phyllite also present in some areas. These rocks are not high in mineral nutrients but provide enough fine-grained material to produce a loamy soil.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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