خيارات البحث
النتائج 181 - 190 من 266
Water uptake by black spruce seedlings from rooting media (solution, sand, peat) treated with inorganic and oxalated aluminum
1989
Arp, P.A. (New Brunswick Univ., Fredericton (Canada). Faculty of Forestry) | Strucel, I.
Copper toxicity and chemistry in the environment: a review
1989
Flemming, C.A. (Guelph Univ. (Canada). Dept. of Environmental Biology) | Trevors, J.T.
The effects on corn and on a Rhodic Paleudult soil of 17 annual Cu and Zn sulfate additions
1989
Gettier, S.W. (Virginia Polytechnic Inst. and State Univ., Blacksburg (USA). Dept. of Agronomy) | Martens, D.C. | Donohue, S.J.
Metals in sediment of lakes in northern Sweden
1989
Johansson, K. (National Environmental Protection Board, Solna (Sweden). Research and Development Dept.)
Metal fluxes to Swedish forest lakes
1989
Borg, H. (National Environmental Protection Board, Solna (Sweden). Research and Development Dept.) | Johansson, K.
Effects of heavy metals in soil on microbial processes and populations (a review)
1989
Baaaath, E. (Lund Univ. (Sweden). Dept. of Microbial Ecology)
Critical metal concentrations for forest soil invertebrates
1989
Bengtsson, G. (Lund Univ. (Sweden). Dept. of Animal Ecology) | Tranvik, L.
Natural stresses, nutrient imbalances and forest decline in southeastern Quebec
1989
Bernier, B. (Laval Univ., Quebec City, Qc. (Canada). Dept. of Forest Sciences) | Pare, D. | Brazeau, M.
Climate change and forest decline: a review of the red spruce case
1989
Cook, E.R. (Lamont-Doherty Geological Observatory, Palisades, NY (USA). Tree-Ring Lab.) | Johnson, A.H.
Monitoring of gaseous pollutants by tunable diode lasers
1989
Grisar, R.
