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Résultats 171-180 de 329
Fertilization of declining conifer stands in the Vosges and in the french Ardennes
1990
Bonneau, M. (Center de Recherches Forestieres INRA, Champenoux (France)) | Landmann, G. | Nys, C.
Risk assessment for groundwater pollution control
1990
McTernan, William F. | Kaplan, Edward
Countermeasures to airborne hazardous chemicals.
1990
Holmes J.M. | Byers C.H.
Effects of fertilization with MgSO(4) and (NH(4))(2)SO(4) on soil solution chemistry, mycorrhiza and nutrient content of fine roots in a Norway spruce stand
1990
Haug, I. (Eberhard-Karl-University, Tuebingen (Germany, F.R.). Inst. of Biology I) | Feger, K.H.
Productivity, nutrient immobilization and soil chemical properties in an Eucalyptus globulus plantation under different irrigation and fertilization regimes
1990
Madeira, M. (Instituto Superior de Agronomia, Lisboa (Portugal)) | Pereira, J.S.
Effect of cement dust treatment on some phylloplane fungi of wheat
1990
Singh, A.K. (Banaras Hindu Univ., Varanasi (India). Dept. of Botany) | Rai, B.
PCB concentrations in stream sunfish (Lepomis auritus and L. macrochirus) in relation to proximity to chronic point sources
1990
Southworth, G.R. (Environmental Sciences Div., Oak Ridge, TN (USA). Oak Ridge National Lab.)
Retention of ingested (110m)Ag by a freshwater fish, Salmo trutta L.
1990
Garnier, J. (Institut de Protection et de Surete Nucleaire DERS/SERE, Saint-Paul-Lez-Durance (France). Lab. de Radioecologie des Eaux Continentales) | Baudin, J.P.
Peroxidase activity as an indicator of pollution stress in the fine roots of Pinus sylvestris
1990
Markkola, A.M. (Oulu Univ. (Finland). Dept. of Botany) | Ohtonen, R. | Tarvainen, O.
