Decrease in potassium availability in species-rich hay meadows at Tadham on the Somerset levels and moors - cause for concern?

Tallowin, J. R. B., Smith, Roger and Kirkham, F. W. (1997) Decrease in potassium availability in species-rich hay meadows at Tadham on the Somerset levels and moors - cause for concern? In: Grassland Management in the 'Environmentally Sensitive Areas', British Grassland Society Occasional Symposium No 32, Proceedings of BGS Conference, University of Lancaster, 23-25 September 1997. UNSPECIFIED, pp. 283-284.