FIGURE 1.
Soil dissolved organic carbon contents (A) and redox potential in surface layer of paddy soil (B) among the treatments during rice growing season in 2016. Error bars present standard deviation of means (n = 3). The different letters (capital letter for the TY soil and lowercase for the BH soil) indicate significant difference among treatments at each stage, which is analyzed by Duncan’s multiple range test (P < 0.05).