Table 2.
Chemical properties on mixing ratio of artificial soil with soil

Media1)	pH	EC (ds/m)	C/N ratio
Soil	4.8±0.15a2)	0.061±0.001c	11.0±0.1e
25% mixed soil	4.7±0.20a	0.065±0.002c	15.0±0.2d
50% mixed soil	4.7±0.12a	0.066±0.004c	17.7±0.2c
75% mixed soil	4.6±0.13a	0.076±0.003b	19.8±0.1b
Artificial soil	4.3±0.10b	0.101±0.003a	26.5±0.3a

Soil: 100% soil, control; 25% mixed soil: 75% soil and 25% artificial soil, (w/w); 50% mixed soil: 50% soil and 50% artificial soil, (w/w); 75% mixed soil: 25% soil and 75% artificial soil, (w/w); Artificial soil: 100% artificial soil
Different letters within same column indicate the significant difference at p < 0.05 by Duncan’s multiple range test