TY - Generic T1 - Decline of acidā€sensitive plant species in heathland can be attributed to ammonium toxicity in combination with low pH. Y1 - 2005 A1 - Van Den Berg, L.J. A1 - Dorland, E. A1 - Vergeer, P. A1 - Hart, M.A.C. A1 - Bobbink, R. A1 - Roelofs, J.G. JF - New Phytologist VL - 166 IS - 2 ER -