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Residual effects of N fertilization on soil-water chemistry and ground vegetation in a Swedish Scots pine forest
1998
Nohrstedt, H.O. (SkogForsk, Uppsala Science Park, S-751 83 Uppsala (Sweden))
The nitrogen reduction programme in the Federal Republic of Germany
1998
Eichler, F. | Schulz, D. (Federal Environmental Agency, Bismarckplatz 1, D-14 193 Berlin (Germany))
Mixed farming systems as a way towards a more efficient use of nitrogen in European Union agriculture
1998
Oomen, G.J.M. | Lantinga, E.A. | Goewie, E.A. | Hoek, K.W. van der (Department of Plant and Crop Sciences, Group of Biological Farming Systems, Wageningen Agricultural University, Haarweg 333, 6709 RZ Wageningen (Netherlands))
Critical loads for nitrogen deposition and their exceedance at European scale
1998
Kuylenstierna, J.C.I. | Hicks, W.K. | Cinderby, S. | Cambridge, H. (Stockholm Environment Institute at York, University of York, P.O. Box 373, York YO10 5YW (United Kingdom))
Influence of set-aside on the nitrate content of soil profiles
1998
Clotuche, P. | Godden, B. | Bol, V. van | Peeters, A. | Penninckx, M. (Universite Catholique de Louvain, Laboratoire d'Ecologie des Prairies, Place Croix du Sud, 1348 Louvain-la-Neuve (Belgium))
Evaluation of SO2 and NO2 concentration levels in vilnius (Lithuania) using passive diffusion samplers
1998
Perkauskas, D. | Mikelinskiene, A. (Institute of Physics, Savanoriu 231, 2028 Vilnius (Lithuania))
Effects of low pH and aluminum on root morphology of Japanese red cedar saplings
1998
Hirano, Y. | Hijii, N. (Laboratory of Forest Protection, School of Agricultural Sciences, Nagoya University, Nagoya 464-8601 (Japan))
Focus on emission factors: a sensitivity analysis of ammonia emission modelling in the Netherlands
1998
Leneman, H. | Oudendag, D.A. | Hoek, K.W. van der | Janssen, P.H.M. (Agricultural Economics Research Institute [LEI-DLO], The Hague (Netherlands))
Effects of eutrophication in drainage ditches
1998
Janse, J.H. | Puijenbroek, P.J.T.M. van (RIVM, Laboratory of Water and Drinking Water Research, P.O. Box 1, NL-3720 BA Bilthoven (Netherlands))
Effects of nitrogen deposition on tree growth and soil nutrients in boreal scots pine stands
1998
Nissinen, A. | Hari, P. (Department of Forest Ecology, P.O. Box 24, University of Helsinki, 00014 Helsinki (Finland))