Table 4 Macronutrient and micronutrient content of A. cepa L., bulb.

From: Production of pine sawdust biochar supporting phosphate-solubilizing bacteria as an alternative bioinoculant in Allium cepa L., culture

Treatment

Treatment description

Macronutrient content (mg bulb−1) ns

P

N

K

Ca

Mg

S

1

Abundagro + 5% Biochar + PSB

1.25 ± 0.13

10.87 ± 0.88

15.82 ± 1.88

10.04 ± 0.50

0.72 ± 0.11

1.85 ± 0.17

2

Abundagro + 2% Biochar + PSB

1.38 ± 0.14

12.21 ± 1.09

17.09 ± 1.23

12.46 ± 1.49

0.76 ± 0.07

2.09 ± 0.13

3

Abundagro + 5% Biochar alone

0.81 ± 0.10

7.17 ± 0.60

10.16 ± 0.99

7.56 ± 0.81

0.49 ± 0.06

1.27 ± 0.12

4

Abundagro + 2% Biochar alone

1.02 ± 0.29

8.79 ± 1.87

14.70 ± 3.45

10.33 ± 2.10

0.58 ± 0.15

1.51 ± 0.41

5

Abundagro

0.76 ± 0.14

7.58 ± 0.73

10.44 ± 0.93

7.81 ± 0.74

0.49 ± 0.03

1.26 ± 0.18

6

Water

1.17 ± 0.22

11.08 ± 2.17

16.59 ± 3.35

12.20 ± 2.90

0.90 ± 0.31

1.88 ± 0.31

 

CV (%)

33.92

30.48

32.28

35.45

48.72

31.02

Treatment

Treatment description

Macronutrient content (mg bulb−1)

Nans

Fe

Mnns

Cu

Znns

Bns

1

Abundagro + 5% Biochar + PSB

1.2678 ± 0.0761

0.0710 ± 0.0204 ab

0.0258 ± 0.0079

0.0016 ± 0.0006 a

0.0182 ± 0.0026

0.0291 ± 0.0016

2

Abundagro + 2% Biochar + PSB

1.6455 ± 0.2156

0.1217 ± 0.0243 a

0.0262 ± 0.0038

0.0006 ± 0.0004 ab

0.0202 ± 0.0024

0.0333 ± 0.0032

3

Abundagro + 5% Biochar alone

0.9166 ± 0.0918

0.0490 ± 0.0110 b

0.0176 ± 0.0030

0.0008 ± 0.0004 ab

0.0148 ± 0.0033

0.0199 ± 0.0013

4

Abundagro + 2% Biochar alone

1.4225 ± 0.4615

0.0435 ± 0.0073 b

0.0157 ± 0.0032

0.0005 ± 0.0004 ab

0.0144 ± 0.0033

0.0229 ± 0.0048

5

Abundagro

0.9165 ± 0.0758

0.0416 ± 0.0028 b

0.0139 ± 0.0019

0.0003 ± 0.0002 b

0.0119 ± 0.0013

0.0194 ± 0.0023

6

Water

1.1793 ± 0.1682

0.0690 ± 0.0137 ab

0.0139 ± 0.0023

0.0004 ± 0.0001 b

0.0157 ± 0.0018

0.0343 ± 0.0036

 

CV (%)

39.04

46.25

35.72

71.04

32.87

24.98

  1. Letters show heterogeneous groups based on Tukey's test and indicate significant differences among treatments (p < 0.05). ns = no significant difference (p > 0.05). CV = coefficient of variation.
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