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Table 3 P-efficiency indexes as a function of the inoculation with Enterobacter 15S or the exogenous application of OAs

From: An insight into the role of the organic acids produced by Enterobacter sp. strain 15S in solubilizing tricalcium phosphate: in situ study on cucumber

Treatment

P indexesa

Available P

PAR

PAS

PUE

AREP

Control P + 

930.76 ± 15.16 a

3.21 ± 0.14 a

5.23 ± 0.03 a

21.12 ± 1.53 c

0.53 ± 0.01 a

Control P-

4.10 ± 0.03 g

0.79 ± 0.05 e

0.32 ± 0.04 fg

NA

NA

15S

149.84 ± 3.66 f

2.24 ± 0.07 b

0.57 ± 0.06 d

6.14 ± 1.10 d

0.19 ± 0.00 c

Ci

183.53 ± 1.20 e

1.52 ± 0.02 c

0.73 ± 0.01 c

39.01 ± 0.84 a

0.23 ± 0.00 c

Fu

190.15 ± 6.45 e

0.49 ± 0.03 f

0.37 ± 0.01 ef

-28.67 ± 4.25 f

0.04 ± 0.01 d

Ke

221.68 ± 7.19 d

1.27 ± 0.05 d

0.43 ± 0.00 def

-1.45 ± 0.91 e

0.05 ± 0.00 d

Ma

227.42 ± 3.98 d

1.21 ± 0.13 d

0.49 ± 0.02 de

-4.72 ± 0.87 e

0.08 ± 0.00 d

Ox

255.22 ± 9.38 c

1.72 ± 0.05 c

1.09 ± 0.13 b

28.50 ± 0.54 b

0.30 ± 0.05 b

Mix

294.19 ± 4.73 b

0.11 ± 0.01 g

0.23 ± 0.01 g

-47.20 ± 1.85 g

-0.03 ± 0.00 e

  1. Means followed by the same lowercase letter in the column do not differ from each other by Tukey’s test (P < 0.05)
  2. aAvailable P (mg kg−1): available P in the substrate (without plant) after 21 days of treatment; PAR (mg) Phosphorus accumulated in roots, PAS (mg) Phosphorus accumulated in shoots, PUE Phosphorus utilization efficiency, AREP Apparent recovery efficiency of phosphorus. NA: value not applicable for Control P- treatment