Sugarcane leaves, banana stems and pineapple stem leaves were used as raw material to research the aerogenesis effect and influence of different proportioned straw and pig manure blend fermentation. Research result showed that multi-straw different proportioned blend fermentation could shorten fermentation period. Under the condition of same fermentation temperature and time, the max total gas output 17040.58mL can be obtained by mainly using pineapple stem leaves with sugarcane leaves for blend fermentation with weight ratio of 1:4:1, with no addition of pig manure, inoculum 30% and dry material concentration 20%. Under the same condition, the total gas output of experiment group with straws containing pineapple stems leaves is higher than the group without pineapple leave residue. Research result provided theoretical basis for the actual application of various crop straws' blend fermentation methane-producing.
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