Figure 5

Principal component analysis (PCA) of straw-decomposing microbial communities of different residue samples under different fertilizer treatments based on the average well color development (AWCD) of carbon sources. Z1-Z7 and W1-W7 referred to the seven sampling time at d7, d14, d28, d45 (d42), d59 (d56), d73 (d70) and d80 (d84) in early-rice season and late-rice season, respectively.