Pulse Brain · Growing Health Evidence Index
Tier 1 — Meta-analysis / systematic reviewPeer-reviewed

Cover crop effects meta-analysis

Han, W. et al.

2018

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Summary

This meta-analysis, published in Agriculture, Ecosystems & Environment, synthesises findings from a large body of literature on cover crop effects across arable systems globally. The paper likely quantifies mean effect sizes for key soil health and agronomic outcomes, identifying conditions under which cover crops deliver the greatest benefits. It provides an evidence base for integrating cover crops into cropping systems as a multifunctional management tool.

UK applicability

Although the evidence base is global, the findings are broadly applicable to UK arable systems, where cover crops are increasingly promoted under agri-environment schemes such as Sustainable Farming Incentive (SFI). Practitioners and policymakers should note that effect sizes may vary with UK-specific climate, soil type, and cover crop species selection.

Key measures

Soil organic carbon (%); soil nitrogen (kg/ha); weed biomass suppression (%); cash crop yield (t/ha or % change); soil bulk density (g/cm³)

Outcomes reported

The study synthesised evidence across multiple studies on the effects of cover crops on soil properties, weed suppression, pest and disease dynamics, and subsequent cash crop yield. Outcomes likely included changes in soil organic matter, nitrogen cycling, and yield responses to cover cropping.

Theme
Farming systems, soils & land use
Subject
Cover cropping & soil management
Study type
Meta-analysis
Study design
Meta-analysis
Source type
Peer-reviewed study
Status
Published
Geography
Global
System type
Arable cereals
Catalogue ID
XL0477

Topic tags

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