Measurement rigour
A first-season trial measured off the harvester
An organic maize grower let us measure at full field scale, off the harvester. One field responded, one did not — and we publish both.
The problem
Rod grows forage maize organically on coastal-plain soils in West Sussex. He gave us two fields, each split into treated and untreated blocks.
He agreed to something most product trials quietly avoid: measuring the result at full field scale, off the harvester, rather than from hand-cut sample plots chosen after the fact.
What we did
TerraScape Biome+ — a microbial soil inoculant, not a soil conditioner — went on during the 2026 season.
At harvest on 23 August 2026, the forage harvester’s own telemetry logged yield, area and moisture for every block.
Application rate: Applied during the 2026 season
What we measured
Field 1 — fresh yield
Treated
28.6 t/ha
Control
26.6 t/ha
A 7.3% uplift; on a dry-matter basis, 9.7 against 8.5 t/ha — a 13.6% uplift.
Field 2 — fresh yield
Treated
30.0 t/ha
Control
30.6 t/ha
Level, with a 1.5% dry-matter difference.
Both fields pooled
Treated
+3.3% fresh
Control
—
The treated area produced 3.3% more fresh weight and 8.1% more dry matter.
Wondering whether your ground would respond?
Tell us about the field. We’ll say whether it’s the kind of soil the trials point to.