细化搜索
结果 81-90 的 266
[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 liming and fertilization measures on soils and trees]
1989
Beese, F. (Gesellschaft fuer Strahlen- und Umweltforschung m.b.H., Neuherberg (Germany, F.R.). Inst. fuer Bodenoekologie)
[Nutrition of Norway spruce in Lower Saxony and first results]
1989
Reemtsma, J.B. (Niedersaechsische Forstliche Versuchsanstalt, Goettingen (Germany, F.R.))
Nutritional aspects of forest soil structure
1989
Hildebrand, E.E. (Forstliche Versuchs- und Forschungsanstalt Baden-Wuerttemberg, Freiburg (Germany, F.R.).)
[Studies on effect and optimization of liming measures on vitality, nutrient supply and soil quality of Norway spruce and European beech stands in two sites of the Hochsauerland]
1989
Oldiges, H. (Fraunhofer-Institut fuer Umweltchemie und Oekotoxikologie, Schmallenberg-Grafschaft (Germany, F.R.))
Effects of Mg-fertilizers on growth and elemental contents of fine roots in declining SO2-polluted Norway spruce stands in the Fichtelgebirge (NE-Bavaria)
1989
Schneider, B.U. (Bayreuth Univ. (Germany, F.R.). Lehrstuhl fuer Bodenkunde) | Zech, W.
[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.
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.)
[Promotion and conservation of natural regeneration of European beech in view of the deposition of air pollutants]
1989
Bressem, U. (Hessische Forstliche Versuchsanstalt, Hann.Muenden (Germany, F.R.). Inst. fuer Forstproduktion und Waldschutz)
[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.