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Bulletin of the National Research Centre

Table 2 Phosphorus use efficiencies of potato plants amended with four P sources and a control in greenhouse conditions with and without inoculation of a consortium of P-solubilizing bacteria

From: Phosphorus-solubilizing bacteria isolated from the rhizosphere of wild potato Solanum bulbocastanum enhance growth of modern potato varieties

Treatments

P content

P uptake efficiency

P utilization efficiency

(mg P plant−1)

(mg P shoot g−1 P applied)

(g tuber g−1 P applied)

With PSB

Without PSB

With PSB

Without PSB

With PSB

Without PSB

Calcium phosphate

0.956

0.666

2.078

1.448

3.509

0.000

Phytin

0.856

0.726

1.861

1.578

0.223

1.448

Fertilizer

4.268

3.484

9.278

7.574

19.162

16.967

Mix

1.749

1.852

3.803

4.026

12.886

9.520

No P

1.023

0.836

    

Statistical significance

p value

P_source

 < .0001

 < .0001

 < .0001

PSB

0.0395

0.0854

0.0518

P_source*PSB

0.7695

0.6263

0.2981

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