Table 2 Statistical results of three-way ANOVAs of the biomass dataa.

From: Plant growth improvement mediated by nitrate capture in co-composted biochar

 

Abg. biomass

Leaves

Shoots

root:shoot

Factor

F

p

F

p

F

p

F

p

Compost

839.6

<0.001

438.9

<0.001

811.3

<0.001

22.2

<0.001

Biochar

376.2

<0.001

196.2

<0.001

388.4

<0.001

2.73

0.079

N-Fertil.

895.1

<0.001

437.4

<0.001

889.1

<0.001

0.08

0.780

Comp. x BC

41.8

<0.001

0.13

0.876

44.0

<0.001

3.24

0.051

Comp. x N

63.3

<0.001

9.55

0.004

75.7

<0.001

0.74

0.397

BC x N

62.3

<0.001

1.72

0.193

64.4

<0.001

0.34

0.712

Comp x BC x N

17.0

<0.001

0.13

0.878

19.4

<0.001

0.23

0.799

  1. aAbbreviations: Abg biomass, aboveground (leaf plus shoot) biomass (Fig. 2); root:shoot, root:shoot ratio; Comp., factor ‘compost addition’; Biochar, BC, factor ‘biochar treatment’; N-Fertil., N, factor ‘low/high fertilization’.
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