Soil Structure & Compaction
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 17 benchmarks together — the OptimalRange form drives the primary score, while 16 guard(s) constrain the result.
Contributing Benchmarks
Evidence & Context
Four years after the initial intervention, the penetrometer resistance in the top 0.1 m of the soil under the DRG treatment was measured at 0.33 MPa, which is equivalent to 330 kPa.
Penetrometer resistance measured as the force required to push a standardized cone tip through the soil profile, indicating soil strength or mechanical impedance.
This benchmark represents the penetrometer resistance as a measure of soil mechanical impedance affecting root growth in arid inland floodplains under agricultural crop production.
This value represents the penetrometer resistance measured at 0.1m depth in a sandy clay loam under a best-practice amelioration treatment (Deep Ripping + Gypsum) that led to significant, lasting improvements in soil physical fertility, water storage, and crop yield.
Sources (1)
Dynamics of soil penetration resistance, moisture depletion pattern and crop productivity determined by mechanized cultivation and lifesaving irrigation in zero till blackgram - PMC - PubMed Central
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