Table 1 Materials used for substrate preparation and their mixture ratios and analysis (C/N ratio).
Substrate and mixture ratio by weight Symbol C/N ratio
Cotton seed hull 80%+wheat bran 20% C80+WB20 34.87
Rice straw 80%+ wheat bran 20% R80+WB20 49.19
Wheat straw 80%+wheat bran 20% WS80+WB20 64.63
Cotton seed hull 45%+Rice straw 45%+wheat bran 10% C45+R45+ WB10 44.76
Cotton seed hull 30%+Rice straw 60%+wheat bran 10% C30+R60+ WB10 47.45
Cotton seed hull 15%+Rice straw 75%+wheat bran 10% C15+R75+ WB10 50.13
Cotton seed hull 40%+wheat straw 40%+wheat bran 20% C40+WS40+ WB20 49.75
Cotton seed hull 30%+wheat straw 50%+wheat bran 20% C30+WS50+ WB20 53.47
Cotton seed hull 20%+wheat straw 60%+wheat bran 20% C20+WS60+ WB20 57.19