خيارات البحث
النتائج 161 - 170 من 197
[Studies on the virus contamination in young forest plantations and regional research stands in North Rhine-Westphalia]
1987
Niehaus, F. (Bonn Univ. (Germany, F.R.). Inst. fuer Pflanzenkrankheiten)
[Determination of cytokinin in needles of Norway spruce (Picea abies)]
1987
Hahn, H. (Bonn Univ. (Germany, F.R.). Botanisches Inst.) | Schwartzenberg, K. von
[Release and characteriszation of mobile Al-species]
1987
Schmid, S. (Fraunhofer-Institut fuer Umweltchemie und Oekotoxikologie, Schmallenberg (Germany, F.R.)) | Kloeppel, H.
[Studies on the natural regeneration of European beech in North Rhine-Westphalia]
1987
Roehrig, E. (Goettingen Univ. (Germany, F.R.). Inst. fuer Waldbau)
[The role of the State Institute for Ecology, Landscape Development and Forestry Planning of North Rhine-Westphalia in the clarification of the causes of new types of forest dieback]
1987
Schmidt, A. (Landesanstalt fuer Oekologie, Landschaftsentwicklung und Forstplanung des Landes Nordrhein-Westfalen, Recklinghausen (Germany, F.R.))
[Approach on the measurement- and experiment station in the forest (MEXFO) and presentation of first results]
1987
Thiele, V. (Landesanstalt fuer Immissionsschutz des Landes Nordrhein-Westfalen (LIS), Essen (Germany, F.R.)) | Specovius, J. | Metzger, F.
[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.
[The application of mycorrhiza fungi for counteracting forest damages]
1987
Fabig, W. (Fraunhofer-Institut fuer Umweltchemie Oekotoxikologie, Schmallenberg (Germany, F.R.))
[Silicon as chemical indicator of the double attack of air pollutants on forests? New results of needle and soil analyses conducted during intromission-ecological forest state registration]
1987
Knabe, W. (Landesanstalt fuer Oekologie, Landschaftsentwicklung und Forstplanung des Landes Nordrhein-Westfalen, Recklinghausen (Germany, F.R.))
Translocation and distribution of 14C-labelled assimilates in 4-year-old Scots pine (Pinus silvestris) and white spruce (Picea abies)
1987
Willenbrink, J. (Koeln Univ. (Germany, F.R.). Botanisches Inst.) | Klein, H. | Schatten, T.
