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Table 3 CEC [cmol (+)/kg soil] at 3, 5, and 12 months in EM treated with LRC and CSB inoculum

From: Effect of low-rank coal inoculated with coal solubilizing bacteria on edaphic materials used in post-coal-mining land reclamation: a greenhouse trial

Treatment

Cation exchange capacity [cmol (+)/kg soil]

3 months

5 months

12 months

EM

11.6 ± 0.7 a

11.6 ± 0.1 a

11.5 ± 0.3 a

EM + P

11.9 ± 0.6 a

11.9 ± 0.3 a

12.1 ± 0.4 ab

EM + P + CSB

11.9 ± 0.3 a

11.6 ± 0.2 a

12.2 ± 0.5 ab

EM + P + LRC 1 %

17.8 ± 0.3 c

16.7 ± 1 c

19.3 ± 0.7 c

EM + LRC 1 %

16.7 ± 1.3 c

14.6 ± 0.5 bc

18.9 ± 0.6 bc

EM + LRC 0.1 %

11.8 ± 0.2 a

11.9 ± 0.2 a

13.2 ± 0.5 ab

EM + CSB + LRC 1 %

19.4 ± 1.9 c

16.9 ± 1.8 c

17.1 ± 1.2 c

EM + CSB + LRC 0.1 %

12.6 ± 0.0 ab

11.4 ± 0.1 a

12.4 ± 0.9 ab

EM + P + CSB + LRC 1 %

19.9 ± 0.2 c

15.3 ± 0.4 c

20.1 ± 1.1 c

EM + P + CSB + LRC 0.1 %

12.2 ± 1 ab

12.0 ± 0.3 ab

14.2 ± 0.7 b

  1. n = 3, ±SD = standard deviation
  2. Treatments with different letters show significant difference (LSD, α = 0.05)