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AMB Express

Table 1 Net nitrification rate (mean ± SE) of each treatment during incubation time

From: pH rather than nitrification and urease inhibitors determines the community of ammonia oxidizers in a vegetable soil

pH

Net nitrification rate (mg kg−1 day−1)

Control

Urea

Urea + nitrapyrin

Urea + NBPT

3.97

3.79 ± 0.11c

6.56 ± 0.13a

5.58 ± 0.09b

5.65 ± 0.07b

4.82

3.55 ± 0.09d

8.21 ± 0.09a

7.34 ± 0.08c

7.68 ± 0.10b

6.07

4.18 ± 0.05d

5.21 ± 0.10a

5.02 ± 0.10b

4.33 ± 0.09c

7.04

0.80 ± 0.09b

0.99 ± 0.07a

0.97 ± 0.01a

0.79 ± 0.06b

  1. Values are mean or mean ± standard deviation (n = 3). Values within the same row followed by the different letters indicate significant difference (P < 0.05)
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