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

Linking soil health indicators to wheat mineral density

Guild, G.E. et al.

2023

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Summary

This study, published in Field Crops Research, investigates whether commonly used soil health indicators are associated with the mineral density of wheat grain. Drawing on observational data from multiple sites, it likely identifies which soil properties show the strongest correlations with grain concentrations of nutritionally important minerals such as zinc and iron. The paper contributes to an emerging evidence base linking soil management and soil biological condition to crop nutritional quality, rather than yield alone.

UK applicability

The study appears to be conducted in Australian dryland cropping systems, so direct transferability to UK arable conditions — including different soil types, rainfall patterns, and cropping practices — is limited. However, the conceptual framework linking soil health metrics to grain mineral density is highly relevant to UK discussions around regenerative agriculture, soil health monitoring, and nutritional quality of cereals.

Key measures

Grain mineral concentration (mg/kg); soil health indicators (e.g. organic carbon, microbial biomass, pH, nutrient availability); wheat yield (t/ha)

Outcomes reported

The study examined associations between a range of soil health indicators and the concentration of minerals (such as zinc, iron, magnesium, and phosphorus) in wheat grain. It assessed whether measurable soil properties could predict or explain variation in grain mineral density across sampled sites.

Theme
Farming systems, soils & land use
Subject
Soil health & crop nutritional quality
Study type
Research
Study design
Observational field study
Source type
Peer-reviewed study
Status
Published
Geography
Australia
System type
Arable cereals
Catalogue ID
XL0340

Topic tags

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