Skip to main content
Log in

Lime-Induced pH Elevation Influences Phosphorus Biochemical Processes and Dynamics in the Rhizosphere of Lupinus polyphyllus and Lupinus angustifolius

  • Original Paper
  • Published:
Journal of Soil Science and Plant Nutrition Aims and scope Submit manuscript

Abstract

The biochemical drivers of phosphorus (P) availability and cycling are sensitive to changes in soil pH. However, reports of lime-induced pH modification effects on P availability are (1) inconsistent, (2) focused mainly on chemical changes, and (3) often limited to the bulk soil. Using lupin as an indicator species, we aimed to evaluate the effects of lime-induced soil pH change, from 5.3 to 6.0, on biochemical processes responsible for P mobilization and dynamics in the rhizosphere of two different lupin species. Indicator species, blue lupin (Lupinus angustifolius) and Russell lupin (Lupinus polyphyllus), were grown in a P-deficient acid grassland soil without P inputs for 11 weeks in a glasshouse. The rhizosphere soils were analyzed for enzyme activity, microbial P, and carboxylates. Both bulk and rhizosphere soils were analyzed for P fractions, exchangeable aluminum (Al), and pH. Plant yields and shoot P uptake were measured. Labile inorganic P (Pi) increased in the rhizospheres of both lupin species, likely due to Pi desorption combined with labile organic P (Po) mineralization, induced by rhizosphere pH elevation after liming. Soil pH increase promoted microbial P immobilization and reduced phosphomonoesterase activity in the rhizosphere, leading to an accumulation of Po mainly as moderately labile and stable Po forms. Total carboxylate concentration (TCC) increased with soil pH increase. Variation in shoot P uptake was mostly explained by TCC. These results indicate that (1) lime application strongly affects P biochemical processes and dynamics in the rhizosphere of lupins. (2) Russell lupin utilizes less P than blue lupin and is unresponsive to liming.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

References

Download references

Acknowledgements

We thank Lincoln University’s technical staff, in particular Dharini Paramashivam, Joy Jiao, Roger Cresswell, Lynne Clucas, and Leanne Hassall for laboratory assistance, and Brent Richards for glasshouse facility management. We also thank Professor Tim Clough for reviewing the manuscript.

Availability of Data and Material

All the data collected in this study are available in Excel files.

Code Availability

Not applicable.

Funding

This study was funded by Mohammed VI Polytechnic University (UM6P, Morocco) and Office Chérifien des Phosphates (OCP, Morocco) under a collaborative research program with Lincoln University (LU, New Zealand).

Author information

Authors and Affiliations

Authors

Contributions

All authors contributed to the study’s conception and design. Material preparation, data collection, and analysis were performed by Moussa Bouray. The first draft of the manuscript was written by Moussa Bouray and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Moussa Bouray.

Ethics declarations

Ethics Approval and Consent to Participate

Not applicable.

Consent for Publication

Not applicable.

Conflict of Interest

The authors declare no competing interests.

Additional information

Publisher’s note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Supplementary Information

ESM 1

(DOCX 133 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Bouray, M., Moir, J.L., Condron, L.M. et al. Lime-Induced pH Elevation Influences Phosphorus Biochemical Processes and Dynamics in the Rhizosphere of Lupinus polyphyllus and Lupinus angustifolius. J Soil Sci Plant Nutr 21, 1978–1992 (2021). https://doi.org/10.1007/s42729-021-00495-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s42729-021-00495-z

Keywords

Navigation