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

Amendment of straw with decomposing inoculants benefits the ecosystem carbon budget and carbon footprint in a subtropical wheat cropping field

Cheng Ji, Jidong Wang, Cong Xu, Yian Gu, Jie Yuan, Dong Liang, Lei Wang, Yunwang Ning, Jie Zhou, Yongchun Zhang

The Science of The Total Environment · 2024

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Summary

This 2024 field trial in a subtropical wheat cropping system examined whether inoculating straw with decomposing microbial consortia could simultaneously enhance soil carbon storage and reduce production-phase greenhouse gas emissions. The research suggests that biological amendment of crop residues offers a dual climate benefit: improved soil carbon sequestration alongside reduced lifecycle carbon footprint. The findings contribute to understanding how microbial interventions might support climate-resilient cereal production in warm, moisture-adequate climates, though absolute emissions reductions and soil carbon persistence would require longer-term validation.

UK applicability

UK wheat systems operate under cooler, wetter conditions than subtropical regions, which may affect microbial inoculant efficacy and residue decomposition rates. The approach may have limited direct applicability to UK temperate cereal production, though the principle of enhancing straw decomposition via biological amendment could merit investigation under UK soil and climatic conditions.

Key measures

Soil carbon cycle dynamics, lifecycle greenhouse gas emissions, carbon footprint of wheat production, ecosystem carbon budget

Outcomes reported

The study measured soil carbon sequestration, greenhouse gas emissions, and overall carbon footprint across the wheat production lifecycle following application of decomposing microbial inoculants to crop residues. Carbon budget indicators and lifecycle assessment metrics were evaluated in a subtropical field trial.

Theme
Climate & resilience
Subject
Climate & greenhouse gas mitigation
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
Geography
China
System type
Arable cereals
DOI
10.1016/j.scitotenv.2024.171419
Catalogue ID
SNmohxvkvj-qjaz3j

Topic tags

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