خيارات البحث
النتائج 1 - 10 من 16
[Studies on the effects and optimizing of liming vitality, nutrient supply and soil quality of Norway spruce and European beech stands]
1986
Fabig, W. (Fraunhofer-Institut fuer Umweltchemie udn Oekotoxikologie, Schmallenberg (Germany, F.R.)) | Kloeppel, H.
[Effects of pollutant gas compounds on overground plant organs of Norway spruce, silver fir, Scots pine and European beech]
1987
Arndt, U. | Guderian, R.
[Ecological effects and silvicultural conception of continuous pollution stress in Northern Federal Republic of Germany]
1987
Otto, H.J. (Niedersaechsisches Ministerium fuer Ernaehrung, Landwirtschaft und Forsten, Hannover (Germany, F.R.))
[Investigations on nutrition state of beech [Fagus sylvatica L.] and spruce [Picea abies Karst.] and nutrient content on fixed sample plots in Switzerland]
1987
Flueckiger, W. (Institut fuer Angewandte Pflanzenphysiologie, Schoenenbuch (Switzerland))
[Technological properties of European beech and oak from the forest damage area "Postturm", forest district Farchau/Ratzeburg]
1988
Fruehwald, A. (Hamburg Univ. (Germany, F.R.). Ordinariat fuer Holztechnologie) | Schwab, E.
[On the effects of ozone on the formation of nitrate in needles and leaves of Picea abies (L.) Karst., Fagus sylvatica (L.) and Quercus robur (L.)]
1987
Krause, G.H.M. (Landesanstalt fuer Immissionsschutz des Landes NordrheinWestfalen (LIS), Essen (Germany, F.R.))
Investigations on nematode populations in forest decline affected ecosystems with particular reference to genera with plant parasitic and virus vector characteristics
1987
Sikora, R.A. (Bonn Univ. (Germany, F.R.). Inst. fuer Pflanzenkrankheiten)
[Effects of eco-toxic heavy metals on young stands of European beech]
1987
Kahle, H. (Bielefeld Univ. (Germany, F.R.). Fakultaet fuer Biologie. Abt. Oekologie) | Breckle, S.W.
[Studies on the natural regeneration of European beech in North Rhine-Westphalia]
1987
Roehrig, E. (Goettingen Univ. (Germany, F.R.). Inst. fuer Waldbau)
[Studies on the development of beech forest ecosystems damaged by air pollution in North Rhine-Westphalia]
1987
Huettermann, A. (Goettingen Univ. (Germany, F.R.). Forstbotanisches Inst.) | Merg, G. | Feig, R. | Fritz, E. | Godbold, D.