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

Beneficial effects of multi-species mixtures on N2O emissions from intensively managed grassland swards

Saoirse Cummins, John A. Finn, Karl G. Richards, Gary Lanigan, Guylain Grange, Caroline Brophy, L. M. Cardenas, T. H. Misselbrook, C.K. Reynolds, Dominika Król

The Science of The Total Environment · 2021

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Summary

This field-based study examined whether introducing botanical diversity into intensive grassland swards can reduce nitrous oxide emissions, a potent greenhouse gas from managed pastures. The findings suggest that multi-species mixtures may offer a practical means of lowering agricultural N2O emissions whilst maintaining productivity in intensively farmed grassland systems. The research contributes evidence for climate-mitigation strategies within sustainable intensification of grassland-based livestock farming.

UK applicability

The study was conducted under UK conditions and directly addresses emissions from intensive grassland management, which is a dominant farming system across the United Kingdom. The findings are directly applicable to UK grassland farmers and policy-makers seeking to reduce agricultural greenhouse gas emissions whilst maintaining livestock productivity.

Key measures

Nitrous oxide emissions (N2O flux); herbage yield and botanical composition; soil conditions in intensive grassland systems

Outcomes reported

The study measured nitrous oxide (N2O) emissions from intensively managed grassland swards under different botanical compositions. It evaluated whether multi-species plant mixtures could reduce N2O emissions relative to monoculture or simpler grassland swards without compromising herbage productivity.

Theme
Climate & resilience
Subject
Climate & greenhouse gas mitigation
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
Geography
United Kingdom
System type
Pasture-based livestock
DOI
10.1016/j.scitotenv.2021.148163
Catalogue ID
BFmovi1pkk-34v2lm

Topic tags

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