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Resultados 1-2 de 2
[Investigations on nutrition state of beech [Fagus sylvatica L.] and spruce [Picea abies Karst.] and nutrient content on fixed sample plots in Switzerland]
1987
Flueckiger, W. (Institut fuer Angewandte Pflanzenphysiologie, Schoenenbuch (Switzerland))
ZB MED Nutrition. Environment. Agriculture - Germany
[Long term perspectives of increased nitrogen input in forest ecosystems: is eutrophication threatening?]
1987
Beese, F. (Goettingen Univ. (Germany, F.R.). Inst. fuer Bodenkunde und Waldernaehrung) | Matzner, E.
ZB MED Nutrition. Environment. Agriculture - Germany
