خيارات البحث
النتائج 91 - 100 من 198
Air-pollution-induced foliar injury to natural populations of jack and white pine in a chronically polluted environment
1987
Armentano, T.V. (Butler Univ., Indianapolis, IN (USA). Holcomb Research Inst.) | Menges, E.S.
Effects of fertilizer factory effluent on soil and crop productivity
1987
Singh, K.K. (DAV College, Kanpur (India). Lab. of Environmental Studies) | Mishra, L.C.
Deposition of air pollutants in a wind-exposed forest edge
1987
Hasselrot, B. (Swedish Environmental Research Inst., Goeteborg (Sweden)) | Grennfelt, P.
Response of two western Canadian conifers to simulated acidic precipitation
1987
Abouguendia, Z.M. (Saskatchewan Research Council, Saskatoon (Canada)) | Baschak, L.A.
Fertilization as a tool to mitigate forest decline associated with nutrient deficiencies
1987
Huettl, R.F. (Freiburg Univ. (Germany, F.R.). Inst. of Soil Science and Forest Nutrition) | Wisniewski, J.
Residues of 2,3,7,8-tetrachlorodibenzo-p-dioxin in the Spring River, Missouri
1987
Crunkilton, R.L. (Missouri Dept. of Conservation, Columbia (USA). Fisheries Research Section) | Smith, L.M. | Petty, J.D. | Kleopfer, R.D.
Adsorption of mercury compounds by tropical soils, 2: effect of soil: solution ratio, ionic strength, pH and organic matter
1987
Semu, E. (Agricultural Univ. of Norway, Aas (Norway). Dept. of Soil Fertility and Management) | Singh, B.R. | Selmer-Olsen, A.R.
Chemical effects of pH 3 sulphuric acid on a soil profile
1987
Brown, K.A. (Central Electricity Research Labs., Leatherhead (UK))
Organochlorine insecticide residues in the rain water in Delhi, India
1987
Agarwal, H.C. (Delhi Univ. (India). Dept. of Zoology) | Kaushik, C.P. | Pillai, M.K.K.
Analysis of the bark of Scots pine as a method of studying environmental changes
1987
Raunemaa, T. (Kuopio Univ. (Finland). Dept. of Environmental Hygiene) | Hari, P. | Kukkonen, J. | Kulmala, M. | Karhula, M.
