خيارات البحث
النتائج 151 - 160 من 325
The spatial heterogeneity of chemical properties in acid forest soils and its importance for tree nutrition
1990
Hildebrand, E.E. (Forest Research Inst. of Baden-Wuerttemberg, Freiburg (Germany, F.R.))
The effect of nitrogen and potassium availability on scleroderris canker of Scots pine seedlings
1990
Ylimartimo, A. (Helsinki Univ. (Finland). Dept. of Silviculture)
Changes in soil properties and site productivity caused by red alder
1990
Cole, D.W. (Washington Univ., Seattle, WA (USA). Coll. of Forest Resources) | Compton, J. | Miegroet, H. van | Homann, P.
Effects of forest liming on the nutrient status of podzolic soils in Finland
1990
Derome, J. (Finnish Forest Research Inst., Vantaa (Finland). Dept. of Soil Science)
Anaerobic treatment of potato-processing wastewater by a UASBR-UAF system at low organic loadings
1990
Guo, J. (Tienjin Univ. (China). Dept. of Civil Engineering) | Lin, K.C.
Countermeasures to airborne hazardous chemicals.
1990
Holmes J.M. | Byers C.H.
Effects of magnesium fertilizer on the vitality and nutrition of a European beech (Fagus sylvatica L.) stand in the Southern Black Forest of West Germany
1990
Ende, H.P. (Albert-Ludwigs-University, Freiburg i. Br. (Germany, F.R.). Inst. of Soil Science and Forest Nutrition) | Zoettl, H.W.
Nutrient stress in young Scots pines suffering from needle loss in a dry heath forest
1990
Tikkanen, E. (Lapland Univ., Rovaniemi (Finland). Arctic Centre) | Raitio, H.
Fertilization of declining conifer stands in the Vosges and in the french Ardennes
1990
Bonneau, M. (Center de Recherches Forestieres INRA, Champenoux (France)) | Landmann, G. | Nys, C.
