Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Earthworms increase available P turnover through microbial pathways: insights from δ18O in phosphate

C. Pistocchi, A. Burr, H.M.J. Vos, F. Tamburini, C. Plassard, J.W. Van Groeningen, A. Milcu, M. Hedde, M.B.H Ros, A. Vidal

Soil Biology and Biochemistry · 2026

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Summary

This 2026 study investigates the mechanistic pathways by which earthworms enhance phosphorus availability in soil, employing stable isotope tracing (δ18O in phosphate) to elucidate the role of microbial communities. The research suggests that earthworm activity stimulates microbial-mediated phosphorus transformations, potentially offering insights into how soil fauna and microbiota interact to improve nutrient cycling. Findings may inform soil management practices aimed at optimising nutrient availability in agricultural systems.

UK applicability

Earthworm populations are foundational to UK soil health, particularly in arable and permanent pasture systems. Understanding how earthworms enhance phosphorus availability through microbial pathways could support evidence-based recommendations for soil management practices and organic farming strategies in UK agriculture.

Key measures

δ18O in phosphate; phosphorus turnover rates; microbial community composition and activity

Outcomes reported

The study examined how earthworms influence phosphorus (P) turnover in soil using stable isotope analysis of oxygen in phosphate (δ18O). As suggested by the title, the research tracked microbial pathways through which earthworms increase the availability of phosphorus to plants.

Theme
Farming systems, soils & land use
Subject
Soil biology & microbiology
Study type
Research
Study design
Field trial or controlled experiment
Source type
Peer-reviewed study
Status
Published
Geography
Europe
System type
Laboratory / in vitro
DOI
10.1016/j.soilbio.2026.110186
Catalogue ID
SNmp4zkx6k-izk3we

Topic tags

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