Table 3 Comparison of the variances and Cochran’s C test results for AG, BG, BX, CBH, and Cacq (µmol g−1soil h−1) under three N fertilization treatments (NN, LN and HN) in two bioenergy croplands (SG and GG).

From: Effects of nitrogen fertilization and bioenergy crop species on central tendency and spatial heterogeneity of soil glycosidase activities

Crop

Fertilization

Plot

AG

BG

BX

CBH

Cacq

SG

NN

P1

0.37

698.1

3.93

242.7

1459.8

P2

0.15

450.1

3.33

119.9

987.6

LN

P1

0.26

539.0

3.18

98.3

1081.9

P2

0.13

739.9

2.56

217.8

1789.8

HN

P1

0.50

338.0

5.46

210.7

1086.6

P2

0.24

704.2

6.51

163.7

1530.1

Cochran's test

C value

0.30

0.21

0.26

0.23

0.26

p-value

0.03

0.90

0.16

0.51

0.60

GG

NN

P1

0.15

815.5

4.09

109.1

1632.9

P2

0.17

421.9

5.05

169.6

1006.0

LN

P1

0.12

750.0

3.97

136.1

1267.2

P2

0.16

371.4

1.03

130.4

788.1

HN

P1

0.07

398.7

1.59

191.8

1119.5

P2

0.17

792.5

3.37

186.9

1710.1

Cochran's test

C value

0.20

0.20

0.23

0.26

0.21

p-value

1.00

0.52

0.14

1.00

0.57

Total Cochran's test

C value

0.20

0.20

0.12

0.15

0.33

p-value

0.00

0.00

1.00

0.11

1.00

  1. The abbreviations are referred to Tables 1 and 2.