TABLE 1.

Chemical composition of the tested composts.

	CV/CM	CV2	CB
pH	7.92	8.08	8.08
Humidity (%)	42.00	43.10	40.90
Organic C (g/kg dry matter)	210.00	258.00	220.00
Organic N (g/kg dry matter)	15.70	23.60	21.30
C/N ratio	13.00	9.44	9.16
Total N (g/kg dry matter)	16.30	15.50	24.00
Organic N/total N ratio	96.00	88.45	88.75
Hg (mg/kg dry matter)	0.16	<0.01	<1.50
Ni (mg/kg dry matter)	93.10	11.6	84.00
Pb (mg/kg dry matter)	47.90	32.1	39.00
Zn (mg/kg dry matter)	143.80	140.10	206.00
Cu (mg/kg dry matter)	52.50	56.60	148.00