خيارات البحث
النتائج 191 - 200 من 329
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.
Effects of fertilization with MgSO(4) and (NH(4))(2)SO(4) on soil solution chemistry, mycorrhiza and nutrient content of fine roots in a Norway spruce stand
1990
Haug, I. (Eberhard-Karl-University, Tuebingen (Germany, F.R.). Inst. of Biology I) | Feger, K.H.
Productivity, nutrient immobilization and soil chemical properties in an Eucalyptus globulus plantation under different irrigation and fertilization regimes
1990
Madeira, M. (Instituto Superior de Agronomia, Lisboa (Portugal)) | Pereira, J.S.
Effect of cement dust treatment on some phylloplane fungi of wheat
1990
Singh, A.K. (Banaras Hindu Univ., Varanasi (India). Dept. of Botany) | Rai, B.
Fertilizer application in aid of plantation establishment in the savanna areas of Nigeria
1990
Kadeba, O. (Federal Univ. of Technology, Akure (Nigeria). Dept. of Forestry and Wood Technology)
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.
Pollution prevention and hazardous waste reduction
1990
Effect of air preheating on automotive emissions
1990
Azpiazu, M.N. (Departamento de Ingenieria Quimica y del Medio Ambiente, Bilbao (Spain)) | Bustamante, C. | Morquillas, J.M.
Distribution of airborne heavy metals as measured in the lichens Ramalina stenospora and Parmotrema praesorediosum in Baton Rouge, Louisiana
1990
Walther, D.A. (McNeese State Univ., Lake Charles, LA (USA). Dept. of Chemistry) | Ramelow, G.J. | Beck, J.N. | Young, J.C. | Callahan, J.D. | Marcon, M.F.
