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Resultados 181-190 de 240
Emissions of N2O, NO and NO2 from soils of spruce stands in the Black Forest 3
1994
Papen, H. (Fraunhofer-Institut fuer Atmosphaerische Umweltforschung, Garmisch-Partenkirchen (Germany)) | Hermann, H. | Nordhaus, R. | Rennenberg, H.
Growth and activity of mycorrhizas in connection to nutrients, water and oxygen in soil. 2: Growth of plants and mycelia in the microcosms
1994
Kottke, I. (Tuebingen Univ. (Germany). Botanisches Inst., Spezielle Botanik und Mykologie) | Leontovykova, J.
Climatic variation and growth of Norway spruce (Picea abies (L.) Karst.), Silver fir (Abies alba Mill.) and European beech (Fagus silvatica L.) in Southwestern Germany
1994
Kahle, H.P. (Freiburg Univ. (Germany). Forstwissenschaftliche Fakultaet. Inst. fuer Waldwachstum) | Hahn, D. | Spiecker, H.
Investigations into the sulfur pools of typical soils of the ARINUS plots - Effects of experimental ammonium sulfate application on sulfur amounts and species
1994
Prietzel, J. (Muenchen Univ., Freising (Germany). Lehrstuhl fuer Bodenkunde und Standortslehre) | Rehfuess, K.E.
Diagnosis of damage to Norway spruce (Picea abies) and silver fir (Abies alba) through visible and biochemical criteria. A comparison of both diagnostic methods on permanent-observation sites in Baden-Wuerttemberg
1994
Schmitt, V. (Mainz Univ. (Germany). Inst. fuer Allgemeine Botanik) | Wild, A.
Effects of nutrient supply on root growth, root turnover, and carbohydrate metabolism of trees
1994
Seith, B. (Hohenheim Univ. (Germany). Inst. fuer Pflanzenernaehrung) | George, E. | Marschner, H.
The effect of liming and Mg-fertilization on uptake, transport and final use of calcium and magnesium in conifers. 2: Significance of internal and external factors influencing the Ca- and Mg-dynamics in Norway spruce trees
1994
Tuerk, S. (Freiburg Univ. (Germany). Inst. fuer Forstbotanik und Baumphysiologie) | Guelpen, M. | Fink, S.
Function and repair of the photosynthetic apparatus in spruce with disorders in the supply with nutrients at different light intensities
1994
Godde, D. (Bochum Univ. (Germany))
Energy & pollution control opportunities to the year 2000 | Energy and pollution control opportunities to the year 2000
1994
Jackson, Marilyn
The pollution of lakes and reservoirs | Survey of the state of world lakes
1994
Clarke, Robin
