خيارات البحث
النتائج 1 - 10 من 36
Effects of environmental stress on forest crown condition in Europe. Part IV: statistical analysis of relationships
2000
Klap, J.M. | Voshaar, J.H.O. | Vries, W. de | Erisman, J.W.
Effects of environmental stress on forest crown condition in Europe. Part I: hypotheses and approach to the study
2000
Vries, W. de | Klap, J.M. | Erisman, J.W.
Acid deposition in the German Solling area: effects on soil solution chemistry and Al mobilization
1992
Matzner, E. (Goettingen Univ. (Germany). Forest Ecosystem Research Center) | Prenzel, J.
Nitrogen cycling in two Norway spruce (Picea abies) ecosystems and effects of a (NH4)2SO4 addition
1992
Feger, K.H. (Albert-Ludwig-University, Freiburg (Germany). Inst. of Soil Science and Forest Nutrition)
Nutritional status of declining spruce (Picea abies (L.) Karst.): effect of soil organic matter turnover rate
1991
Hambuckers, A. (Liege Univ. (Belgium). Dept. of Microbial Ecology) | Remacle, J.
Water, nutrient and pollutant budgets in damaged Norway spruce stands in NE-Bavaria (F.R.G.) and their changes after different fertilization treatments
1990
Hantschel, R. (Bayreuth Univ. (Germany). Inst. of Soil Science and Soil Geography) | Kaupenjohann, M. | Horn, R. | Zech, W.
Foliar symptoms on Norway spruce and relationships to magnesium deficiencies
1990
Ke, J. (Pennsylvania State Univ., University Park, PA (USA). Dept. of Plant Pathology) | Skelly, J.M.
A new fertilization strategy in declining forests
1990
Evers, F.H. (Forest Research Station of Baden-Wuerttemberg, Freiburg i. Br. (Germany, F.R.)) | Huettl, R.F.
Scattered CaSO(4)-crystallites on needle surfaces after simulated acid rain as an indicator of nutrient leaching
1990
Huttunen, S. (Oulo Univ. (Finland). Dept. of Botany) | Turunen, M. | Reinikainen, J.
The use of organic and mineral fertilizers in reforestation and in revitalization of declining protective forests in the Alps
1990
Glatzel, G. (Universitaet fuer Bodenkultur, Vienna (Austria). Inst. of Forest Ecology) | Haselwandter, K. | Katzensteiner, K. | Sterba, H. | Weiszbacher, J.
