Summary
This critical review examines the dynamic interactions between phosphorus, minerals, and soil organic carbon at soil interfaces that control long-term phosphorus fertility. The authors propose a novel conceptual framework in which soil organic carbon compounds drive transformation of mineral-phosphorus associations through desorption and dissolution, mobilising otherwise unavailable phosphorus. The review links these interface mechanisms to practical phosphorus management strategies for sustainable agriculture.
Regional applicability
The mechanistic insights on phosphorus mobilisation through soil organic carbon could inform UK soil management practices, particularly in systems seeking to enhance phosphorus use efficiency and reduce reliance on finite phosphate reserves. Application would require site-specific consideration of UK soil mineralogy and organic matter characteristics.
Key measures
Mechanisms of phosphorus adsorption, precipitation, desorption, and dissolution at mineral-organic carbon interfaces; efficacy of reactive soil organic carbon compounds in transforming mineral-associated phosphorus
Outcomes reported
This critical review synthesises interface processes and mechanisms governing the formation and transformation of mineral-phosphorus associations (MPAs) at soil-mineral interfaces, and proposes a conceptual framework linking soil organic carbon dynamics to phosphorus mobilisation and farmland availability.
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