TY - Generic T1 - Potassium and phosphorus additions modify the response of Sphagnum capillifolium growing on a Scottish ombrotrophic bog to enhanced nitrogen deposition Y1 - 2007 A1 - Carfrae, J. A. A1 - Sheppard, L.J. A1 - Raven, J.A. A1 - Leith, I.D. A1 - Crossley, A. JF - Applied Geochemistry VL - 22 ER -