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Jahr: 1977
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Es wurden 515 Ergebnisse in 4 Millisekunden gefunden.
Zeige Ergebnisse 11 bis 20 von 515.
Composition of the soil organic matter system depending on soil type and land use
Dynamics of organic forms of nitrogen in the nitrogen cycle of soil
Variation in content of polycyclic aromatic hydrocarbons in soil and plants by using municipal waste composts in agriculture
Application of computer techniques in humus research
Decomposition in soil of specifically carbon14-labelled DHP and corn stalk lignins, model humic acid-type polymers and coniferyl alcohols
Decomposition of carbon14-labelled plant material in saline-sodic soils
Oxidation of some phenolic substances as influenced by clay minerals
Comparative investigations on the evidence of the biochemical oxygen demand (BOD), potassium permanganate consumption (KMnO4) and dissolved organic carbon (DOC) in water samples of different origin
Kostengünstige Rindviehställe : 13. Folge: "Beispielbetrieb Th. Petersen"
Kostengünstige Rindviehställe : 15. Folge: "Entmistung von Boxenlaufställen"
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