Nehany magyarorszagi talaj mikrobialis biomassza-C tartalmanak meghatarozasa kloroform fumigracios es szubsztrat indukalt respiracios modszerrel.
1992
Szili Kovacs T. | Szegi J.
Using the chloroform fumigation incubation (CFI) method, an 8-10-day incubation proved suitable for the determination of the biomass: this period was sufficient for the CO2 production of the fumigated and control soils to become almost identical for the soils tested. During the 10-day incubation after chloroform fumigation, the rate at which the biomass was mineralized depended on the soil type. In the substrate-induced respiration (SIR) method, the first 4 h of incubation can be used for the determination of the biomass, due to the linearity of the process. No correlation could be demonstrated between the biomass-C determined using the CFI and SIR methods and the total numbers of bacteria, actinomycetes and fungi. The biomass-C values obtained using the SIR method exhibited no correlation with any of the soil properties examined. A weak correlation was found in the 21 soil samples between the CFI biomass-C and the organic C, total N, Olsen-P and saccharase activity of the soils tested.
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