Public Proof Record
Winter wheat — plant biostimulant compared with an untreated control
A single-season treatment-and-control trial recording the effect of a foliar plant biostimulant applied at GS31 on a winter wheat crop, compared with an untreated control on the same farm under the same agronomic management.
§ 01Structured fields
- Crop
- Winter wheat
- Variety
- Skyfall (declared)
- Season
- 2025/26
- Broad region
- ████ · Lincolnshire
- Soil type
- Heavy clay
- Treatment
- Foliar plant biostimulant, applied at GS31
- Control
- Untreated plot on the same farm, same field, same management
- Outcome
- +0.41 t/ha vs untreated (95% CI: +0.12 to +0.70)
§ 02Supporting evidence
- 01Weighbridge tickets, treated and control plots
- 02GPS-tagged yield data from combine
- 03Tissue analysis report, treated and control
- 04Agronomist field-walk notes, four visits
- 05Photographs, GS31, GS39, GS61, harvest
Raw evidence files are held in the private envelope. The public record shows the evidence inventory, not the files themselves.
§ 03Trust state
01
RecordedEarned
Contributor has submitted the record.
02
StructuredEarned
All required fields completed in the Proof Record format.
03
Protocol lockedEarned
Treatment, control and method declared before the trial ran.
04
Independently reviewedNot yet
An independent reviewer has checked the record.
05
ReplicatedNot yet
A second contributor has recorded a comparable trial.
06
CorroboratedNot yet
Multiple contributors have recorded comparable trials with consistent direction.
§ 04Declared conflicts
None declared. Contributor has no commercial relationship with the manufacturer of the treatment.
§ 05Addenda
No addenda filed. Corrections and clarifications appear here as visible history. The original record is never silently rewritten.
§ 06Lock metadata
- Locked at
- 2026-03-14 09:42 UTC
- Manifest hash
- 92b7·31fc·c0a8·d52f·a3e9·45b1·77c8·90fa
- Contributor
- Independent agronomist (verified)