Bioremediation of Ex-Mining Soil with the Biocompost in the Incubation Experiments

Table 3

The bulk density value of ex-siltstone mining soil due to the application of biocompost at various incubation periods.

Ratio of soil: biocompost	Incubation period (weeks)				Average
	0	2	4	6
	.(Mg·m^−3).
Before incubation (control)	2.04^b	2.04^b	2.04^b	2.04^b	2.04^b
1 : 1 (50 : 50)	2.02^b	2.01^b	2.02^b	1.96^b	2.00^b
1 : 2 (33 : 67)	1.92^b	1.93^b	1.93^ab	1.64^a	1.86^b
1 : 3 (25 : 75)	1.08^a	1.45^a	1.75^a	1.46^a	1.44^a
Average	1.77^a	1.86^a	1.94^a	1.78^a

Numbers followed by the same letter in the same column were not significantly different according to the LSD 0.05 test (0.18).