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Fig. 5. Temporal variations of CH4 production rates during a 115-d incubation. (a) Soil E (Epiaquepts); (b) Soil H (Hapludults); (c) Treatment V; I, II, III, IV, and V represent air-dry water condition, 25 to 35, 50 to 60, 75 to 85% of soil water-holding capacity and flooding, respectively, during non-rice-growing season. Bars indicate ± one standard deviation for Treatments II, III, IV and V; results of Treatment I showed a similar range of standard deviation as Treatment III.
