خيارات البحث
النتائج 111 - 120 من 166
Methods and measures used for the protection of waters against pollution (from cattle, swine or poultry) from large farms or livestock operations and accumulative effect of small farm production
1974
LaVeille, W.C. (Environmental Protection Agency, Washington, D.C. (USA). Office of Research and Development)
Penetration of herbicides into the soil with precipitations
1974
Neururer, H. (Bundesanstalt fuer Pflanzenschutz, Vienna (Austria))
The beneficial effects of fertilizer use in minimizing water pollution
1974
Gervy, R. (International Superphosphate and Compound Manufacturers Association, London (UK))
Effects of soil erosion in agricultural and forest areas of Austria
1974
Schulz, K. (Bundesversuchsinstitut fuer Kulturtechnik und technische Bodenkunde, Petzenkirchen (Austria))
Effects of fertilizers on surface and drainage waters
1974
Schulz, K. (Bundesversuchsinstitut fuer Kulturtechnik und Technische Bodenkunde, Petzenkirchen (Austria))
Possible effects of forest residues and forestry operations on surface water quality
1974
Evans, J.O. (Dept. of Agriculture, Washington, D.C. (USA). Forest Service)
Evaluation of the existing methods of application and control of fertilizers with regard to their possible pollution of water bodies
1974
Mayr, H.H. (Oesterreichische Stickstoffwerke, A.G., Linz (Austria))
Evaluation of the harmful effects of the different methods of use and dispersal of pesticides on water bodies
1974
Brachet, J. (Ministere de l'Agriculture, Paris (France). Service de l'Amenagement des Eaux)
Principal guidelines for international co-operation in scientific and other research works for water protection against the noxious effects of the use of pesticides in agriculture and forestry
1974
Kljajic, R. (European and Mediterranean Plant Protection Organization, Paris (France))
Biological control of unwanted aquatic plants
1974
Weber, E. (Bundesanstalt fuer Wasserbiologie und Abwasserforschung, Vienna (Austria))
