As shown in Fig. 1, soil pH in the control had a slight increase from 7.69 to 7.70 on day 7, and decreased to 7.53 on day 14, then increased to 7.75 at the end of the incubation.
As shown in Fig. 1, soil pH in the control had a slight increasefrom 7.69 to 7.70 on day 7, and decreased to 7.53 on day 14, thenincreased to 7.75 at the end of the incubation.