Table 3 Statistic results of redundancy analysis (RDA) between soil microbial communities and explanatory environmental parameters under EOM addition.

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

Explanatory variables

Microbial composition without pig manure

Explanatory variables

Microbial composition with pig manure

Variance

F

p-value

Variance

F

p-value

pH

2.45

7.73

**

pH

1.38

1.80

0.188

NO3−–N

1.05

3.32

*

DOC

0.62

0.81

0.541

NH4+–N

1.55

4.89

*

TP

0.94

1.22

0.339

DOC

1.07

3.38

*

MBC

1.48

1.92

0.157

TP

0.60

1.91

0.165

Cellulase

0.35

0.45

0.797

AcP

0.69

2.19

0.122

Urease

0.41

0.53

0.728

  1. *Significant correlation at 0.05 level; **significant correlation at 0.01 level.
  2. NO3−–N nitrate nitrogen, NH4+–N ammonia nitrogen, DOC dissolved organic carbon, TP total phosphorus, MBC microbial biomass carbon, MBN microbial biomass nitrogen, AcP acid phosphomonoesterase.
  3. *p < 0.05; **p < 0.01; ***p < 0.001.
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