Soil Phosphorus
Benchmark Value
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 7 benchmarks together — the OptimalRange form drives the primary score, while 6 guard(s) constrain the result.
Contributing Benchmarks
Evidence & Context
Soil Phosphorus 30 - 70 mg/kg Agricultural Audit and Land Use Capability Assessment for Norfolk Island High This benchmark represents the optimal range for available phosphorus in the volcanic Ferrosol soils of Norfolk Island, a key example of the target biome.
Available soil phosphorus measured by standard soil tests such as Colwell-P or Olsen-P, representing the labile phosphorus pool available for plant uptake.
Optimal range of available phosphorus in volcanic Ferrosol soils for sustainable agricultural crop production.
Derived from the Agricultural Audit and Land Use Capability Assessment for Norfolk Island, tailored to the volcanic Ferrosol soils and regenerative agricultural practices.
Sources (1)
VEGETATION 0}' LORD HOWE ISLAND - Botanic Gardens of Sydney
View SourceSupporting Sources (1)
Additional references from the underlying research that informed this benchmark.
NORFOLK ISLAND FOOD SECURITY STRATEGY 2023 - 2028 “Growing the local food economy for a resilient, sustainable and healthy com
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