POTENTIAL PASTURE PRODUCTION IN THE UPLANDS OF WALES

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Abstract
Detailed soil and vegetation analysis at Pant‐y‐dwr Hill Centre illustrated the main physical, chemical and biological factors involved in low output from rough grazing on 5 soil series, ranging from acid brown earth to undifferentiated peat, which are representative of most of upland mid‐Wales. While all the soils, derived from Silurian shale, had low pH and base saturation status and high lime, phosphate and potash requirements, the principal restraint on the productivity of resown grassland, particularly on the wet peaty gleys, was low available N status.