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Table 2 Analysis of variance considering the influence of different N fertilization treatments, different cultivars AG 1051 e BRS Caimbé in two seasons of evaluation on first cob insertion height (FCIH), plant height (PH), grains yield (GY), N leaves concentration (NL), and N grains concentration (NG)

From: Inoculation with Azospirillum brasiliense increases maize yield

Sources

DF

Mean square

FCIH

PH

GY

NL

NG

Growing season 2014/2015

 Block

3

31.85ns

149.91ns

476,496.1ns

2.72ns

1.57ns

 Cultivar (C)

1

3606.13**

1199.28**

31,621,724.6**

88.05**

186.58**

 Nitrogen (N)

3

227.86**

686.25**

20,983,449.3**

144.44**

13.26**

 C × N

3

158.19ns

482.69ns

993,154.7ns

2.05ns

3.13ns

 Error

21

58.47

168.17

326617.5

7.47

0.92

 CV (%)

7.3

6.4

14.0

9.7

6.1

Growing season 2015/2016

 Block

3

36.53ns

6.91ns

75,302.1ns

4.92ns

3.59ns

 Cultivar (C)

1

2397.58**

1928.21**

12,329,709.0**

65.35**

50.07**

 Nitrogen (N)

3

214.96**

871.44**

27,503,747.9**

191.12**

5.45ns

 C × N

3

40.77ns

107.19ns

625,594.3ns

4.54ns

1.57ns

 Error

21

21.92

51.99

257,929.3

3.91

3.52

 CV (%)

4.1

3.3

11.4

7.7

12.3

  1. DF degrees of freedom
  2. ** Significant at F test, p < 0.01
  3. nsNot significant at F test (p > 0.05)