خيارات البحث
النتائج 181 - 190 من 345
Nitrogen deposition in Canada's Boreal Shield: implications for the Kyoto Protocol
1998
Brydges, T.G. (39 Elizabeth Street South, Brampton, Ontario, Canada L6Y 1RR2 (Canada))
Computer-aided model system N-PROG for estimating the requirements of nitrogen, crop yields and post-harvest nitrogen residues with respect to ecological parameters, economic and crop management factors
1998
Schoop, P. (Institute of Crop Science and Plant Breeding, Christian-Albrechts-University, Kiel (Germany))
Experience with the replication of regional survey of soil pollution
1998
Meuli, R. | Schulin, R. | Webster, R. (ETH Zurich, Institute for Terrestrial Ecology, Grabenstrasse 3, 8952 Schlieren (Switzerland))
Polychlorinated biphenyl and polycyclic aromatic hydrocarbon deposition to and exchange at the air-water interface of Esthwaite Water, a small lake in Cumbria, UK
1998
Gevao, B. | Hamilton-Taylor, J. | Jones, K.C. (Environmental Science Department, Institute of Environmental and Natural Sciences, Lancaster University, Lancaster LA1 4YQ (United Kingdom))
Response of a grassland ecosystem to air pollutants. V. A toxicological model for the assessment of dose-response relationships for air pollutants and ecosystems
1998
Dammgen, U. | Grunhage, L. (Federal Agricultural Research Centre Braunschweig, Institute for Agroecology, Bundesallee 50, D-38116 Braunschweig (Germany))
Leaching of nitrate from agriculture to groundwater: the effect of policies and measures in the Netherlands
1998
Oenema, O. | Boers, P.C.M. | Eerdt, M.M. van | Fraters, B. | Meer, H.G. van der | Roest, C.W.J. | Schroder, J.J. | Willems, W.J. (AB-DLO, P.O. Box 14, 6700 AA Wageningen (Netherlands))
Nitrogen, the Confer-N-s
1998
Manning, W.J. | Dempster, J.P. (eds.) (Department of Microbiology, University of Massachusetts, 203 Morrill Science Center IVN, Box 35720, Amherst, Massachusetts 01003-5720 (USA))
Power-station contributions to local concentrations of NO2 at ground level
1998
Webb, A.H. | Hunter, G.C. (National Power PLC, Swindon (United Kingdom))
Nitrification-denitrification processes and technologies in new contexts
1998
Verstraete, W. | Philips, S. (Laboratory of Microbial Ecology, University of Gent, Coupure Links 653, B-9000 Gent (Belgium))
Spatial variation in annual nitrogen deposition in a rural region in Switzerland
1998
Eugster, W. | Perego, S. | Wanner, H. | Leuenberger, A. | Liechti, M. | Reinhardt, M. | Geissbuhler, P. | Gempeler, M. | Schenk, J. (University of Bern, Institute of Geography, Hallerstrasse 12, CH-3012 Bern (Switzerland))
