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

Optimized co-application of biochar and organic fertilizer enhances soil quality and leaf yield in a Cyclocarya paliurus–Camellia sinensis agroforestry system on acidic soils

Rui Deng; Jian Xu; Shanshan Wang; Jianren Wang; S. Fang

Agroforestry Systems · 2026

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Summary

This field trial investigated optimized co-application of biochar and organic fertilizer in a mixed agroforestry system combining Cyclocarya paliurus (Chinese hickory nut) and Camellia sinensis (tea) on acidic soils, likely in southern China. The research suggests that integrated soil amendments can improve soil chemical and biological properties whilst enhancing tea leaf productivity, addressing a practical challenge in acidic-soil agroforestry management.

Regional applicability

Whilst this study was conducted in China, the findings may have limited direct applicability to United Kingdom agroforestry, as UK soils are generally less acidic and the tea–hickory species combination is not typical of UK production systems. However, the methodology for evaluating biochar and organic fertilizer co-benefits could inform UK research on soil amendment strategies in acidic upland and marginal agroforestry sites.

Key measures

Soil quality parameters (pH, organic matter, nutrient content, microbial activity) and tea plant leaf yield

Outcomes reported

The study evaluated the combined effects of biochar and organic fertilizer application on soil quality indicators and leaf yield in a Cyclocarya paliurus–Camellia sinensis agroforestry system. Outcomes likely included soil pH, nutrient availability, microbial activity, and tea leaf biomass production.

Theme
Farming systems, soils & land use
Subject
Agroforestry & intercropping
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
Geography
China
System type
Agroforestry
DOI
10.1007/s10457-026-01562-z
Catalogue ID
NRmr2mg9nh-000

Topic tags

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