Table 2. Effect of methanogenic substrates on methane production in flooded soil.

Compounds	Concentration of methane (µg/mL)
	Day 7	Day 14	Day 21	Day 28
Untreated	0.4	5.6	17.7	28.4
Acetate	NA	33.6	137.2	135.6
Methanol	NA	112.1	112.9	105.7
C-1	0.2	0.7	0.9	1.3
C-1+Acetate	NA	0.4	0.7	1.1
C-1+Methanol	NA	9.5	100.4	93.5
BES	0.0	0.9	2.1	2.8
BES+Acetate	NA	0.2	1.4	6.7
BES+Methanol	NA	0.8	1.9	3.4

NA: Not applicable