Case studies

What the trials actually showed.

Field trials of the TerraScape amendments, on real farms. Each one lists what was measured, the sample size behind it, and where the evidence stops. Growers have consented to these being published.

Common questions about the evidence — and the claims we don’t make — are in the FAQ.

A misty upland pasture in North Yorkshire with a muddy channel cut down the slope by run-off.

Erosion & infiltration

The day the runoff stopped

Mastersoil 150 · North Yorkshire, England · 2023

Water ran off heavy North Yorkshire clay instead of soaking in, cutting a channel down the hill. After Mastersoil 150, compaction in the treated zone halved.

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A broken clod of dark arable soil with fine roots and earthworms, a ripening cereal field behind it.

Soil biology

More than doubling soil biology

Mastersoil 150 · North Yorkshire, England · 2022

Across two compacted North Yorkshire barley fields, microbial biomass in the Mastersoil 150-treated zones averaged 81% higher than the untreated controls.

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A Manitoba prairie cereal field at sunset, with a pale salt-affected bare patch in the foreground soil.

Salt-affected ground

Bringing salt-sealed ground back into production

TerraScape Mastersoil 150 (CFIA reg. 2025171S) · Manitoba, Canada · 2023–2025

A railway embankment had left 17 acres of a Manitoba field saline-sodic and sealed at the surface. Fourteen months on, independent testing put the soil back in the normal range.

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A forage harvester cutting a standing maize crop on the West Sussex coastal plain, downland behind.

Measurement rigour

A first-season trial measured off the harvester

TerraScape Biome+ · West Sussex, England · 2026

An organic maize grower let us measure at full field scale, off the harvester. One field responded, one did not — and we publish both.

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