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

Long-term manuring enhances soil gross nitrogen mineralization and ammonium immobilization in subtropical area

Jun Wang, Lei Wu, Qiong Xiao, Yaping Huang, Kailou Liu, Yan Wu, Dongchu Li, Yinghua Duan, Wenju Zhang

Agriculture Ecosystems & Environment · 2023

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Summary

This field-based study examined how sustained manure application influences nitrogen cycling dynamics in subtropical soils. The research suggests that long-term manuring enhances both gross nitrogen mineralization and the soil's capacity to immobilise ammonium, likely through improvements in soil organic matter status and microbial community function. Such effects may improve nitrogen availability and reduce leaching losses in subtropical cropping systems.

UK applicability

Whilst conducted in subtropical conditions, findings on organic matter-driven nitrogen cycling are potentially relevant to temperate UK soils, particularly for farms adopting long-term manure strategies. Differences in temperature, rainfall and microbial communities mean direct application of rates and timescales would require UK-specific validation.

Key measures

Gross nitrogen mineralization rates; ammonium immobilization rates; soil microbial biomass and activity indicators; soil organic carbon and total nitrogen content

Outcomes reported

The study measured soil gross nitrogen mineralisation rates and ammonium immobilisation capacity under long-term manuring regimes. It assessed how sustained organic matter inputs alter key nitrogen cycling processes in subtropical soil.

Theme
Farming systems, soils & land use
Subject
Soil fertility & nutrient management
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
Geography
China
System type
Mixed farming
DOI
10.1016/j.agee.2023.108439
Catalogue ID
SNmohku2yg-7orqee

Topic tags

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