خيارات البحث
النتائج 1 - 10 من 24
Nitrate leaching in dairy farming: economic effects of environmental restrictions
1998
Groeneveld, R. | Bouwman, A.F. | Kruitwagen, S. | Ierland, E.C. van (Department of Economics and Management, Environmental Economics Group, Wageningen Agricultural University, P.O. Box 8130, 6700 EW, Wageningen (Netherlands))
Changes in nitrogen transformations in forest soil as a result of sprinkling infiltration
1998
Lindroos, A.J. | Paavolainen, L. | Smolander, A. | Derome, J. | Helmisaari, H.S. (Finnish Forest Research Institute, Vantaa Research Centre, Box 18, FIN-01301 Vantaa (Finland))
Nitrogen balances and leaching in four agricultural catchments in southeastern Norway
1998
Bechmann, M. | Eggestad, H.O. | Vagstad, N. (Jordforsk, Centre for Soil and Environmental Research, N-1432 As (Norway))
Nitrogen monitoring in groundwater in the sandy regions of the Netherlands
1998
Fraters, D. | Boumans, L.J.M. | Drecht, G. van | Haan, T. de | Hoop, W.D. de (National Institute of Public Health and the Environment (RIVM), P.O. Box 1, 3720 BA Bilthoven (Netherlands))
Towards integrated national modelling with particular reference to the environmental effects of nutrients
1998
Alkemade, J.R.M. | Grinsven, J.J.M. van | Wiertz, J. | Kros, J. (National Institute of Public Health and the Environment, Bilthoven (Netherlands))
Comparison of N and C dynamics in two Norway spruce stands using a process oriented simulation model
1998
Eckersten, H. | Beier, C. (Swedish University of Agricultural Sciences, P.O. Box 7043, S-75007 Uppsala (Sweden))
Modelling the effects of nitrogen addition on soil nitrogen status and nitrogen uptake in a Norway spruce stand in Denmark
1998
Beier, C. | Eckersten, H. (RISO National Laboratory, P.O. Box 49, DK-4000 Roskilde (Denmark))
Episodic behaviour of nitrate in runoff during six years of nitrogen addition to the NITREX catchment at Gardsjon, Sweden
1998
Moldan, F. | Wright, R.F. (Swedish Environmental Research Institute, Gothenburg, Sweden and Norwegian Institute for Water Research, Oslo (Norway))
Environmental hazards of nitrogen loading in wetland rice fields
1998
Ghosh, B.C. | Ravi Bhat (Agricultural and Food Engineering Department, Indian Institute of Technology, Kharagpur 721 302 (India))
Nitrogen enrichment of European inland and marine waters with special attention to Danish policy measures
1998
Iversen, T.M. | Grant, R. | Nielsen, K. (National Environmental Research Institute (Denmark))