A SIMPLE ELECTROLYTIC RESPIROMETER-LEACHING TUBE COMBINATION FOR SOIL METABOLISM STUDIES |
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| Authors: | H. T. TRIBE M. W. M. BEWICK |
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| Affiliation: | (Department of Applied Biology, The University, Pembroke Street, Cambridge) |
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| Abstract: | An apparatus is described consisting of a combination of an electrolytic respirometer and a leaching tube. This allows determination in the same soil sample of O2 uptake, CO2 release, and N release as NO3?, NH4+, and NH3 Release of other water soluble components can also be followed. Unlike other electrolytic respirometers the apparatus measures O2 uptake directly, the O2 being replaced periodically by electrolysis. Fluctuations in electrolyte level due to changes in atmospheric temperature and pressure are compensated for using a control apparatus with a volume equal to the air space in the experimental apparatus. The simplicity of the apparatus allows ready replication. |
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