. The results were statistically analyzed by one-way analysis of variance (ANOVA). When significant differences were found between treatments, comparisons were made using the Duncan multiple range tests. To investigate the role of PNSB biofertilizers on the CH4 flux, a linear correlation was used for analysis by using Pearson’s product momentum correlation coefficient (rp) to estimate the strength and direction of the linear correlations between paired parameters. The Pearson coefficients (rp) of < 0.05) for the correlations