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Evaluation of Phosphate-Solubilizing Bacteria (PSB) on Phosphorus Availability in Agricultural Soils and the Growth of Wheat ( Triticum aestivum L.)

Author

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  • Renzo Enriquez-León

    (Escuela de Ingeniería Ambiental, Facultad de Ingeniería, Universidad César Vallejo, Trujillo 13007, Peru
    Renzo Enriquez-León and Jeffrey De la Cruz-Mantilla are the main authors of the research, while German Luis Huerta-Chombo is a secondary co-author.)

  • Jeffrey De la Cruz-Mantilla

    (Escuela de Ingeniería Ambiental, Facultad de Ingeniería, Universidad César Vallejo, Trujillo 13007, Peru
    Renzo Enriquez-León and Jeffrey De la Cruz-Mantilla are the main authors of the research, while German Luis Huerta-Chombo is a secondary co-author.)

  • German Luis Huerta-Chombo

    (Escuela de Ingeniería Ambiental, Facultad de Ingeniería, Universidad César Vallejo, Trujillo 13007, Peru
    Renzo Enriquez-León and Jeffrey De la Cruz-Mantilla are the main authors of the research, while German Luis Huerta-Chombo is a secondary co-author.)

Abstract

The objective of this research was to determine the effect of phosphate-solubilizing bacteria (PSB) on phosphorus availability in agricultural soils and the growth of wheat ( Triticum aestivum L.). This applied research considered PSB and phosphorus availability in the soil as variables. An experimental design was employed, comprising four groups of pots containing 1 kg of wheat-cultivated soil (no inoculum, 5% inoculum, 10% inoculum, and 15% inoculum), with three replicates each, using a bacterial suspension of 3 × 10 8 CFU/mL. Wheat seedling development parameters were evaluated on days 29 and 45, and soil phosphorus availability was assessed on day 45. The 10% inoculum treatment yielded superior results in seedling development: plant height, aerial dry biomass, and root dry biomass showed highly significant differences ( p < 0.0001). A 10% PSB dose improved soil phosphorus availability from 72.77 ± 0.13 ppm to 96.68 ± 0.58 ppm compared to the control. These findings highlight PSB as a sustainable alternative for enhancing agricultural productivity, thereby reducing dependence on chemical fertilizers.

Suggested Citation

  • Renzo Enriquez-León & Jeffrey De la Cruz-Mantilla & German Luis Huerta-Chombo, 2025. "Evaluation of Phosphate-Solubilizing Bacteria (PSB) on Phosphorus Availability in Agricultural Soils and the Growth of Wheat ( Triticum aestivum L.)," Sustainability, MDPI, vol. 17(10), pages 1-21, May.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:10:p:4545-:d:1657061
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    References listed on IDEAS

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