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

Enhancing water use efficiency and crop production through shallow- and deep-rooted crop strip intercropping in semi-arid regions

Yuhuan Wu; Qianhu Ma; Yanan Liu; Zikui Wang

Soil and Tillage Research · 2026

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Summary

This field-based study investigates how strip intercropping systems pairing shallow-rooted and deep-rooted crops can improve water use efficiency and overall crop productivity in semi-arid environments, likely in northern or north-western China. By exploiting complementary root architectures, the intercropping design is thought to facilitate more complete extraction of soil water across different soil horizons, reducing water stress and improving yields relative to monocultures. The paper contributes to the evidence base for spatially structured cropping systems as a practical strategy for dryland agriculture under water-limited conditions.

UK applicability

The findings are of limited direct applicability to the UK, which operates under a temperate maritime climate with generally higher and more reliable rainfall. However, as water scarcity becomes an increasing concern in eastern England and under projected climate change scenarios, the principles of root-complementary intercropping may offer relevant insights for improving resilience in drier arable regions.

Key measures

Water use efficiency (kg/m³ or mm); crop yield (t/ha); soil water content (%); land equivalent ratio (LER); root distribution depth (cm)

Outcomes reported

The study likely measured water use efficiency, crop yield, and soil water dynamics under strip intercropping systems combining shallow- and deep-rooted species in semi-arid conditions. It probably compared intercropping arrangements against monoculture controls to quantify agronomic and hydrological benefits.

Theme
Farming systems, soils & land use
Subject
Cropping systems & water management
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
Geography
China
System type
Arable cereals
DOI
10.1016/j.still.2025.107043
Catalogue ID
NRmo3f02hq-0eh

Topic tags

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