Skip to main content

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)