Abstract
Near a hen house (50–600 m), vitality ofPinus sylvestris, N-, P-, K-, Ca-, Mg-contents of the needles, N-, Mg-, K-, Ca- and Al-contents in soil extracts and NH3/NH +4 -contents of the air were determined. Damage symptoms occurred when N-immissions hit the canopy directly. In contrast no visible decline of the above ground plant could be observed if N was mainly deposited on the soil.
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Kaupenjohann, M., Döhler, H. & Bauer, M. Effects of N-immissions on nutrient status and vitality ofPinus sylvestris near a hen-house. Plant Soil 113, 279–282 (1989). https://doi.org/10.1007/BF02280193
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DOI: https://doi.org/10.1007/BF02280193