Soil Nitrogen
Benchmark Value
Scoring Curve
The scoring engine could not generate a curve for this benchmark context. The primary form is Point, but the benchmark data may be missing required fields (e.g., optimal range bounds for an OptimalRange benchmark). This is typically a data quality issue in the benchmark pipeline.
Evidence & Context
The derived benchmark for Total Soil Nitrogen in the topsoil (0-10 cm) is 1500 mg/kg. This value represents a state of high ecological function, reflecting a soil system where regenerative practices—such as minimal tillage, diverse crop rotations including legumes, and the use of organic amendments—have built soil organic matter and nitrogen pools to a level that supports healthy crop production while minimizing reliance on external inputs.
Total Soil Nitrogen content in the topsoil (0-10 cm depth) representing the best available condition for sustainable agricultural crop production in the specified biome and land use.
This benchmark represents the total soil nitrogen concentration in mg/kg at 0-10 cm depth for a high-health regenerative agricultural cropping system in Australia's Arid Karstic Woodlands & Shrublands biome, indicating a soil condition that supports sustainable crop production with improved ecological function.
The benchmark is a synthesis of modelled baseline data from the CSIRO Soil and Landscape Grid of Australia and empirical field data from analogous cropping systems on calcareous soils in semi-arid South Australia. It reflects a state of high ecological function and improved soil health under regenerative management practices.
Sources (1)
Soil and Landscape Grid National Soil Attribute Maps - Total Nitrogen (3" resolution) - Release 2
View SourceSupporting Sources (2)
Additional references from the underlying research that informed this benchmark.
Grains Research and Development Corporation (GRDC)
View Source