خيارات البحث
النتائج 51 - 60 من 219
[Alterations in the humus situation in connection with forest diseases with special regard to fertilization experiments]
1986
Babel, U. (Hohenheim Univ., Stuttgart (Germany, F.R.). Inst. fuer Bodenkunde und Standortslehre)
[Forest fertilization and nitrate stress of seepage-, surface and springwater]
1986
Evers, F.H. (Forstliche Versuchs- und Forschungsanstalt, Freiburg im Breisgau (Germany, F.R.))
[Studies on the restoration of yellow-shooted Norway spruce trees in the Fichtelgebirge with different Mg-fertilizers]
1986
Zech, W. | Kaupenjohannn, M. | Hantschel, R. | Schneider, B.U.
[Benefits and risks of forest fertilization with special regard to soil chemistry]
1986
Hildebrand, E.E. (Forstliche Versuchs- und Forschungsanstalt Baden-Wuerttemberg, Freiburg (Germany, F.R.))
Quality and utilization of wood from damaged trees
1986
Becker, M. (Freiburg Univ. (Germany, F.R.). Inst. fuer Forstpolitik und Raumordnung)
Effects on soil and ground water of acid precipitation (corrosion and contamination of drinking water)
1986
Broemssen, U. von (Statens Naturvaardsverk, Solna (Sweden). Forsknings- och Utvecklingsavd.)
Forest damage - a status report on effects via the leaves
1986
Fink, S. (Albert-Ludwigs-Univ., Freiburg (Germany, F.R.). Inst. fuer Forstbotanik und Holzbiologie)
Forest damage - a status report on inventory methods [crown damage]
1986
Becher, G. (Bundesforschungsanstalt fuer Forst- und Holzwirtschaft, Hamburg (Germany, F.R.). Inst. fuer Weltforstwirtschaft)
Soil acidification and metal solubility in forests of south Sweden
1986
Tyler, G. (Lund Univ. (Sweden). Vaextekologiska Inst.)
Inventory of forest damage in Sweden [needle loss, crown density]
1986
Bengtsson, G. (Sveriges Lantbruksuniv., Umeaa (Sweden). Inst. foer Skogstaxering)