Figure 2 | Scientific Reports

Figure 2

From: Effects of exogenous organic matter addition on agricultural soil microbial communities and relevant enzyme activities in southern China

Figure 2

Effect of EOM on contents of soil available nutrients (DOC, AP, NH4+–N and NO3−–N), and the plots were labeled without pig manure (without), with pig manure (with). The data were expressed by mean ± standard error (n = 3). Pig manure × Treatment: interaction between crop residues without and with pig manure. The different lowercase and uppercase letters denote the significant difference among different treatments without and with pig manure addition at 0.05 level, respectively. The two-way ANOVA results were indicated by NS non-significant, *p < 0.05, **p < 0.01, ***p < 0.001.

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