Since your last review
17 new compatible case files match saved cohort "Biological seed treatments · winter wheat"
cohort v4 · membership unchanged until you accept · COH-BST-WW-v4
3 method incompatibilities flagged in "N-use efficiency" cohort
2 unit mismatches (kg N/ha vs lb N/ac, approved conversion available) · 1 boundary mismatch (cannot pool)
Addendum on a cited record affects 2 snapshots and 1 export
PRF-UK-A-000188 corrected 18 Jul · affected outputs listed for review, originals untouched
Site visits · 23 Jul 2026
Trial site · Brook Ground strip trial — mid-season assessment
09:30 · protocol v2 checklist · counts + canopy photos · offline capture supported
Cohort site · Wychwood Estate — SOM sampling round 3
13:00 · LOI protocol · fixed sampling points from 2023 baseline · deviation form ready if timing slips
Record explorer · faceted cohort builder
live denominator · k=5 enforcedActive filters
crop: winter wheat
practice: biological input
soil: medium
region: East of England
metric: yield t/ha
strictly compatible
Theme preset: arable biological inputs
presets expose the exact canonical filters beneath — "organic" reads as management context unless certification evidence is recorded
| Record | Type | Season | Outcome | State |
|---|---|---|---|---|
| PRF-UK-A-000231 | Comparison | 2025 | +0.2 t/ha | measured |
| PRF-UK-D-002204 | Outcome | 2025 | no clear difference | measured |
| PRF-UK-F-001873 | Outcome | 2025 | −0.3 t/ha | measured |
| PRF-FR-K-000966 | Outcome | 2025 | pending | not yet measured |
Compatibility matrix
why records can and can't be pooled| Method | Unit | Basis | Poolable | |
|---|---|---|---|---|
| -000231 | weighbridge | t/ha | field | yes |
| -002204 | weighbridge | t/ha | field | yes |
| -001873 | yield monitor | t/ha | field | calibration differs |
| -000966 | plot combine | t/ha | plot | no — basis mismatch |
The tool refuses to combine apples and pears silently — each "no" carries its plain-language reason.
Exclusion waterfall · cohort v4
total N → included N, every step namedForest plot · biological seed treatment vs untreated · yield difference
n=23 comparisons · t/ha · ordered by season, explicitly not ranked18 further comparisons below · every point opens its record and inclusion reason · no pooled estimate shown where boundaries differ · no conclusion drawn for you.