خيارات البحث
النتائج 51 - 60 من 222
Dissipation of some organochlorine insecticides in cropped and uncropped soil
1991
Singh, G. | Kathpal, T.S. | Spencer, W.F. | Dhankar, J.S. (Department of Chemistry and Biochemistry, Haryana Agricultural University, Hisar-125004 (India))
Yield and grain quality of spring wheat (Triticum aestivum L., cv. Drabant) exposed to different concentrations of ozone in open-top chambers
1991
Pleijel, H. | Skarby, L. | Wallin, G. | Sellden, G. (Swedish Environmental Research Institute (IVL), 402 58 Goteborg (Sweden))
Effects of Sphagnum moss and urban runoff on bioavailability of lead and zinc from acidic wetlands of the New Jersey Pinelands
1991
Vedagiri, U. | Ehrenfeld, J. (Dep. Environmental Sci., Rutgers Univ. New Brunswick, NJ 08903 (USA))
Origin of Bel-W3, Bel-C and Bel-B tobacco varieties and their use as indicators of ozone
1991
Heggestad, H.E. (USDA-ARS Climate Stress Laboratory, Beltsville, MD 20705 (USA))
Biomonitoring of heavy metals in the western European Rivers Rhine and Meuse using the freshwater mussel Dreissena polymorpha
1991
Kraak, M.H.S. | Scholten, C.Th. | Peeters, W.H.M. | Kock, W.Chr. de (Department of Aquatic Ecology, University of Amsterdam, Kruislaan 320, 1098 SM Amsterdam (Netherlands))
Organochlorine contaminants in narwhal (Monodon monoceros) from the Canadian Arctic
1991
Muir, D.C.G. | Ford, C.A. | Grift, N.P. | Stewart, R.E.A. | Bidleman, T.F. (Department of Fisheries and Oceans, Central and Arctic Region, Winnipeg, MB, R3T 2N6 (Canada))
Effects of elevated CO(2) concentration on the polyamine levels of field-grown soybean at three O(3) regimes
1991
Kramer, G.F. | Lee, E.H. | Rowland, R.A. | Mulchi, C.L. (Climate Stress Laboratory, USDA-ARS, Beltsville, MD 20705 (USA))
Reversibility of stemflow-induced soil acidification in Swedish beech forest
1991
Falkengren-Grerup, U. | Bjork, L. (Dep. Plant Ecology, Univ. Lund, S-223 61 Lund (Sweden))
The effects of acidification on the geochemistry of Al, Cd, Pb and Hg in freshwater environments: a literature review
1991
Nelson, W.O. | Campbell, P.G.C. (Univ. Quebec, Inst. National de la Recherche Scientifique, Sainte-Foy, Quebec G1V 4C7 (Canada))
