خيارات البحث
النتائج 1 - 8 من 8
The impact of fertilization and site preparation on natural regeneration of declined forest stands in the Black Forest
1989
Littek, T. (Freiburg Univ. (Germany, F.R.). Waldbau-Inst.)
Results of long-term sucession of ground-vegetation after fertilization in forest stands of the Northern Black Forest
1989
Schornick, O. (Freiburg Univ. (Germany, F.R.). Inst. fuer Landespflege)
[The influence of forest fertilization on the fructification of mykorrhiza fungi and its effect to the nitrogen mineralization fungal by fruits on small forest sites]
1989
Mueller, C. (Tuebingen Univ. (Germany, F.R.). Fakultaet fuer Biologie) | Oberwinkler, F.
[Short- und long-term effects of time application and mineral fertilization on the soil fauna of Norway spruce stands]
1989
Funke, W. (Ulm Univ. (Germany, F.R.). Abt. Oekologie und Morphologie der Tiere) | Jans, W.
[Studies on the effects of neutral salt fertilizations within the framework of the project ARINUS]
1989
Zoettl, H.W. (Freiburg Univ. (Germany, F.R.). Inst. fuer Bodenkunde und Waldernaehrungslehre) | Feger, K.H. | Simon, B.
[Effects of nitrate and sulphate fertilizers on soil-pH and nutrient element supply of Norway spruce and European beech stands]
1989
Liu, J.C. (Freiburg Univ. (Germany, F.R.). Inst. fuer Bodenkunde und Waldernaehrungslehre) | Ende, H.P.
[Effects of a fertilization measure on forest stands and seepage water]
1989
Krebs, A. (Forstliche Versuchs- und Forschungsanstalt Baden-Wuerttemberg, Stuttgart (Germany, F.R.). Abt. Botanik und Standortskunde)
[Studies on the chronical effect of gaseous and soluted substances on young fir, Norway spruce and beech trees in model ecosystems]
1989
Seufert, G. (Hohenheim Univ. (Germany, F.R.). Inst. fuer Landeskultur und Pflanzenoekologie) | Arndt, U.
