Table 1.

Formula design of the cultivation materials and C/N

Formulas	Substrate mixture ratio					C/N
	X1 (%)a	X2 (%)b	X3 (%)c	X4 (%)d	X5 (%)e
1 (CK)	100	0	0	0	0	74.64
2	0	100	0	0	0	48.9
3	0	0	100	0	0	20.51
4	0	0	0	100	0	34.88
5	0	0	0	0	100	32.25
6	50	50	0	0	0	59.12
7	50	0	50	0	0	31.83
8	50	0	0	50	0	47.22
9	50	0	0	0	50	44.24
10	0	50	50	0	0	28.65
11	0	50	0	50	0	40.58
12	0	50	0	0	50	38.49
13	0	0	50	50	0	26.71
14	0	0	50	0	50	25.22
15	0	0	0	50	50	33.48
16	60	10	10	10	10	47.66
17	10	60	10	10	10	40.6
18	10	10	60	10	10	25.82
19	10	10	10	60	10	34.88
20	10	10	10	10	60	33.48
21	20	20	20	20	20	14.9

^aX₁—sawdust

^bX₂—corn cob

^cX₃—soybean straw

^dX₄—rice straw

^eX₅—corn straw