Table 2.

The TOC, TKN, TP and TK content in initial substrate, control substrate and residue in different treatments.

Subsrate	TOC(%)			TKN(%)			TP(%)			TK(%)
	Initial	Control	Residue	Initial	Control	Residue	Initial	Control	Residue	Initial	Control	Residue
1	45.13	43.15	42.82 ± 0.97ab	1.73	1.71	3.36 ± 0.14a	0.24	0.25	0.68 ± 0.04b	0.18	0.18	0.36 ± 0.02e
2	44.79a	43.78	45.29 ± 2.96a	1.62	1.57	2.45 ± 0.11b	0.33	0.33	0.61 ± 0.05c	0.37	0.37	0.63 ± 0.03d
3	43.44	41.61	40.48 ± 0.69b	1.43	1.45	2.10 ± 0.06c	0.41	0.42	0.65 ± 0.04bc	0.53	0.54.	0.68 ± 0.03c
4	40.10	37.58	40.49 ± 1.10b	1.33	1.32	1.81 ± 0.02d	0.50	0.53	0.64 ± 0.02bc	0.74	0.76	0.85 ± 0.01b
5	40.75	40.75	37.40 ± 0.11c	1.21	1.25	1.77 ± 0.10d	0.59	0.60	0.79 ± 0.02a	0.91	0.93	1.18 ± 0.06a

Note: TOC, total organic carbon; TKN, total Kjeldahl nitrogen; TP, total phosphorus; TK, total potassium.