Fraunhofer-Institut für Atmosphärische Umweltforschung IFU

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  • Patent
    Verfahren zur Ermittlung der Nitrifikations- und/oder Denitrifikationsrate von Boeden und Vorrichtung hierzu
    ( 2003)
    Butterbach-Bahl, K.
    DE 19906872 A UPAB: 20001023 NOVELTY - Determining soil nitrification and denitrification rates comprising introducing a soil sample into a gas- and pressure-tight vessel to leave a gas space above the soil, hermetically sealing the vessel, and measuring the pressure, and oxygen (O2) and carbon dioxide (CO2) concentrations at least at the start and end of an incubation period of 0.5-24 hours, is new. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for apparatus for carrying out the novel method, comprising a sealable gas-tight vessel having at least one pressure sensor access port and at least one sealable inlet. USE - For determining soil nitrification and denitrification rates using a complex set of equations given in the specification. ADVANTAGE - The method is simple and inexpensive.