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 study examines the interactive effects of crop straw incorporation and nitrogen fertiliser application on N₂O emissions in intensively cropped farmland. Rather than acting independently, the findings suggest straw incorporation and fertiliser nitrogen interact to influence greenhouse gas emissions, a relationship relevant to optimising nitrogen management and residue handling in high-input arable systems. The work contributes to understanding how agronomic practices can be modified to reduce nitrous oxide losses without compromising productivity.

UK applicability

The findings are potentially applicable to UK cereal and arable systems, particularly those using high nitrogen inputs and straw incorporation as a residue management practice. However, UK soils, climate and cropping patterns differ from the intensive Chinese farming systems studied, so local validation would be necessary before firm recommendations for UK practice.

Key measures

Nitrous oxide (N₂O) emissions; nitrogen fertiliser application rates; crop straw incorporation; soil conditions in intensively cropped farmland

Outcomes reported

The study measured nitrous oxide (N₂O) emissions from soil under different combinations of crop straw incorporation and nitrogen fertiliser application rates in an intensive cropping system. The research quantified how these management practices interact to influence greenhouse gas losses.

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
BFmovi1pkk-afbtqw

Topic tags

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