Soil Electrical Conductivity (EC)

AUS-AIF-AGR-SEC General Moderate confidence

Benchmark Value

0 dS/m
Direction: Lower is desirable ↓
Form: MinimumOnly

Scoring Curve

This curve shows how a field measurement for this indicator would score across all available benchmark forms in this context. The scoring engine uses 2 benchmarks together — the MinimumOnly form drives the primary score, while 1 guard(s) constrain the result.

Contributing Benchmarks

MinimumOnly Primary MaximumOnly Guard

Evidence & Context

An EC that is excessively low (e.g., approaching 0 dS/m) can indicate a deficiency of dissolved nutrients and suppressed biological activity

Metric Definition:

Electrical Conductivity of the Saturated Soil Paste Extract (ECe)

Benchmark Definition:

Soil electrical conductivity (ECe) near 0 dS/m in arid inland floodplains may indicate nutrient deficiencies and reduced biological activity harmful to crops.

Justification:

Excessively low EC indicates a deficiency of dissolved ions necessary for active nutrient cycling and microbial processes.

Sources (28)

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(PDF) Soil processes affecting crop production in salt-affected soils - ResearchGate Journal

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Influence of Soil Properties on Electrical Conductivity Under Humid Water Regimes

Influence of Soil Properties on Electrical Conductivity Under Humid Water Regimes

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Managing heavy clay soils of the Bland - NSW Department of Primary Industries

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Nutrient Supply to Floodplains | EARTH 111: Water: Science and Society - Penn State Government

Nutrient Supply to Floodplains | EARTH 111: Water: Science and Society - Penn State

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Regenerative Agriculture—A Literature Review on the Practices and Mechanisms Used to Improve Soil Health - MDPI, accessed August 5, 2025, Journal

Regenerative Agriculture—A Literature Review on the Practices and Mechanisms Used to Improve Soil Health - MDPI, accessed July 20, 2025,

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Salinity tolerance in irrigated crops - NSW Department of Primary ..., accessed July 17, 2025, Journal

GUIDE TO SOIL TEST INTERPRETATION

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USDA 12

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Soil electrical conductivity (EC) is a measure of the amount ... - USDA Journal

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Preview of Soil Electrical Conductivity | South Dakota Soil Health Coalition
Soil Electrical Conductivity | South Dakota Soil Health Coalition Journal

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Soil processes affecting crop production in salt-affected soils

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The Sweet Secret to Balancing Electrical Conductivity in Soil - YouTube GreyLiterature

The Sweet Secret to Balancing Electrical Conductivity in Soil - YouTube

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Context

  • Region Australia
  • Biome Arid Inland Floodplains & Ephemeral River Systems
  • Land Use Agricultural Crop Production
  • Assessment Agricultural Crop Production
  • Evidence Type DegradationThreshold

Lifecycle

  • Status Active
  • Version 1
  • Effective From 7 Jun 2026

Notes

Rule D applies: although EC is generally a harm indicator (higherIsDesirable=false), a floor is required for nutrient availability.

Related Benchmarks

Other benchmarks in the AUS-AIF-AGR-SEC family.

— dS/m Moderate
Agricultural Crop Production · Agricultural Crop Production
OptimalRange Active v1
4 dS/m Moderate
Agricultural Crop Production · Agricultural Crop Production
MaximumOnly Active v1