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

Crop straw incorporation interacts with N fertilizer on N2O emissions in an intensively cropped farmland

Cong Xu, Xiao Han, Shuhua Ru, L. M. Cardenas, Robert M. Rees, Di Wu, Wenliang Wu, Fanqiao Meng

Geoderma · 2019

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Summary

This field-based study investigates the interaction between crop straw incorporation and nitrogen fertiliser application on nitrous oxide emissions in intensively cropped farmland. The research suggests that these two agronomic practices do not act independently, implying that optimising one without considering the other may lead to suboptimal greenhouse gas mitigation outcomes. The findings contribute to understanding how common soil and nutrient management decisions in cereal systems affect climate-relevant soil emissions.

UK applicability

The results are potentially relevant to UK arable farming, particularly in intensive cereal systems where both straw retention and nitrogen fertiliser use are standard practice. However, direct applicability may be limited by differences in climate, soil type, and cropping intensity between the study location and typical UK conditions.

Key measures

Soil nitrous oxide (N₂O) emissions; nitrogen fertiliser rates; crop straw incorporation levels; soil nitrogen dynamics

Outcomes reported

The study examined how crop straw incorporation interacts with nitrogen fertiliser application to influence nitrous oxide (N₂O) emissions in intensive cereal cropping. The research measured soil N₂O fluxes and related soil biogeochemical variables under different straw and nitrogen management scenarios.

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.geoderma.2019.01.014
Catalogue ID
BFmowc1zyw-0bpoyw

Topic tags

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