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Effects of ammonia on periphytic communities.
1990
Niederlehner B.R. | Cairns J. Jr.
The relationship between foliar injury, nitrogen metabolism, and growth parameters in ozonated soybeans
1990
Smith, G. | Neyra, C. | Brennan, E. (Department of Plant Pathology, New Jersey Agricultural Experiment Station, New Brunswick, NJ 08903 (USA))
Soil response to S and N treatments in a northern New England low elevation coniferous forest
1990
Fernandez, I.J. (Maine Univ., Orono, ME (USA). Dept. of Plant, Soil and Environmental Sciences) | Rustad, L.E.
The effect of drainage on nutrient release from fen peat and its implications for water quality - a laboratory simulation
1990
Heathwaite, A.L. (Sheffield Univ. (UK). Dept. of Geography)
Environmental pollution and impacts on soils and forests nutrition in North America
1990
Johnson, D.W. (Biological Sciences Center, Reno, NV (USA). Desert Research Inst.) | Ball, J.T.
The effect of nitrogen and potassium availability on scleroderris canker of Scots pine seedlings
1990
Ylimartimo, A. (Helsinki Univ. (Finland). Dept. of Silviculture)
Survival rate of tree and shrub seedlings under extreme environmental nitrogen pollution
1990
Kowalkowski, A. (Pedagogical Univ., Kielce (Poland). Inst. of Geography)