Research Article
Community Structure of Ammonia-Oxidizing Archaea and Ammonia-Oxidizing Bacteria in Soil Treated with the Insecticide Imidacloprid
Table 1
Characteristics of the soil used in the experiment.
| | Parameter | Value | Method of determination | Reference |
| | Origin | Pszczyna, Poland | — | — | | Sand (2000–50 μm) (%) | 86.0 ± 2.7 | Sedimentation and sieving method | ISO 11277:2009 | | Silt (<50–2 μm) (%) | 11.0 ± 2.4 | Sedimentation and sieving method | ISO 11277:2009 | | Clay (<2 μm) (%) | 3.0 ± 0.5 | Sedimentation and sieving method | ISO 11277:2009 | | Density g/cm3 | 1.2 ± 0.2 | Core method | ISO 11272:1998 | | (1 : 5) | 6.6 ± 0.3 | Measurement with glass electrode | ISO 10390:2005 | | Cation exchange capacity (CEC) (cmol+/kg) | 12.9 ± 1.7 | Modified Gillman method | ISO 11260:1994 | | Water holding capacity (WHC) (%) | 32.4 ± 2.8 | Gravimetric method | ISO 14239:1997 | | Corg (%) | 1.0 ± 0.2 | Oxidation in the presence of H2SO4 | ISO 14235:1998 | | Ntot (%) | 0.09 ± 0.03 | Modified Kjeldahl method | ISO 11261:1995 | | Microbial biomass (mg/kg dry weight) | 668.0 ± 34.2 | Substrate-induced respiration (SIR) | ISO 14240-1:1997 |
|
|
The values are the means of three replicates with the standard deviation, which was within 5% of the mean.
|
