Table 3 Simpson-Reciprocal diversity index for nirK, typical nosZ, and atypical nosZ, in control and biochar microcosms after 0, 4, and 10 days.

From: Soil biochar amendment affects the diversity of nosZ transcripts: Implications for N2O formation

 

nirK

typical nosZ

atypical nosZ

control

biochar

sig.

control

biochar

sig.

control

biochar

sig.

day 0

1.53 ± 0.34

2.51 ± 0.91

ns

5.52 ± 0.70

4.82 ± 0.29

ns

6.97 ± 2.76

6.92 ± 1.00

ns

day 4

2.07 ± 0.35

2.18 ± 0.13

ns

4.47 ± 0.14

4.84 ± 0.07

*

5.03 ± 0.29

3.85 ± 0.37

*

day 10

2.37 ± 0.14

2.96 ± 0.08

**

4.03 ± 0.34

4.62 ± 0.14

*

4.24 ± 0.63

4.28 ± 0.44

ns

average

2.27 ± 0.58a

4.72 ± 0.55b

5.21 ± 1.68b

  1. “average” shows average values of all microcosms at all time points of sampling. Values represent means ± standard deviation (individual samples: n = 3, average: n = 18). Significant differences between individual control and biochar samples are shown in the column “sig.” (ns = not significant, *p < 0.05, **p < 0.01). Significant differences (p < 0.05) between the average values of nirK, typical nosZ and atypical nosZ are indicated by superscripted letters next to the corresponding values.
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