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Table 3 Physico-chemical characterization of compost treatments (MSW alone and integrated with organic additives) at 70 days

From: Evaluation of compost quality from municipal solid waste integrated with organic additive in Mizan–Aman town, Southwest Ethiopia

Chemical Characteristics

Compost treatments

T1 (control)

T2

T3

T4

T5

Over all mean

pH

7.1 ± 0.1c

7.6 ± 0.1b

7.6 ± 0.1b

7.9 ± 0.1a

7.9 ± 0.1a

7.6 ± 0.3

OM (%)

18.2 ± 0.7c

22.5 ± .0.8b

22.6 ± 0.9b

23 ± 0.9b

25.6 ± 0.8a

22.4 ± 2.5

OC (%)

10.6 ± 0.4c

13.0 ± 0.5b

13.1 ± 0.5b

13.3 ± 0.5b

14.9 ± 0.5a

13 ± 1.5

TN (%)

0.74 ± 0.05c

1.0 ± .0.06b

1.0 ± 0.04b

1.2 ± 0.05a

1.2 ± 0.05a

1.0 ± 0.2

T/P (ppm)

2051 ± 141c

2542 ± 122b

2576 ± 142b

2834 ± 151a

2918 ± 114a

2584 ± 315

C: N

14.3 ± 0.4a

13.0 ± 0.6b

13.0 ± 0.8b

11.3 ± 0.3c

12 ± 0.4c

12.7 ± 1.1

  1. OM organic matter, OC organic carbon, TN total nitrogen, T/P total phosphorus, C:N carbon and nitrogen ration
  2. * Mean values with different letters (a, b, c) among the treatments are significantly different from each other (p < 0.05)