Table 1 Effects of different long-term fertilizer treatments on soil chemical characteristics in the double-cropping rice field.

From: Effects of long-term fertilizer practices on rhizosphere soil ammonia oxidizer community structure under the double-cropping rice field

Treatments

pH

SOC

(g kg−1)

Total N

(g kg−1)

NO3-N

(g kg−1)

NH4-N

(g kg−1)

MF

6.32 ± 0.17ab

21.46 ± 0.68c

2.07 ± 0.06c

0.17 ± 0.01c

0.16 ± 0.01c

RF

6.70 ± 0.17a

24.82 ± 0.72b

2.45 ± 0.07b

0.21 ± 0.01b

0.20 ± 0.01b

OM

6.81 ± 0.18a

29.62 ± 0.71a

3.08 ± 0.08a

0.27 ± 0.01a

0.23 ± 0.01a

CK

6.21 ± 0.16b

19.68 ± 0.56d

1.91 ± 0.06c

0.13 ± 0.01d

0.12 ± 0.01d

  1. Values were presented as mean ± standard error. Different lowercase letters in the same column were indicated significantly at difference in 0.05 levels. The same as below.
  2. MF, inorganic fertilizer; RF, rice straw and inorganic fertilizer; OM, 30% organic manure and 70% inorganic fertilizer; CK, without fertilizer input as a control.
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