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claude 54094a0d43 Add university-extension variety trials: Illinois VT + Iowa ICPT + Ohio OCPT (+123 trial docs)

Independent third-party performance data — land-grant programs that test every
entered brand side-by-side with replication + LSD stats. This is the legitimate
way to get Pioneer / DEKALB / Brevant / Channel performance the corpus can't
scrape directly (data_type=trial, results[] shape; falls through the trial
chunker).

- illinois_vt_trials (30 docs, 1,392 rows) — U of Illinois VT. Per-region XLSX
  (openpyxl), corn + soy + WHEAT, 2024+2025. Rich per-site agronomic metadata;
  corn-following-corn vs -soybean kept distinct.
- iowa_icpt_trials (24 docs, 674 rows) — Iowa State ICPT. ASP.NET GridView
  (viewstate postback for year/district), corn + soy by district x season.
- ohio_ocpt_trials (69 docs, 4,647 rows) — OSU/CFAES OCPT. Report PDF
  (pdfplumber; per-site column groups split by header Yield-token count +
  x-coord footnote bucketing), corn + soy per site, 2024+2025.

91 distinct seed brands across the three; majors confirmed present in the
independent rankings: DEKALB 395, Golden Harvest 249, Channel 241, NK 212,
Xitavo 135, LG 103, Pioneer 88, Asgrow 59. (A brand only appears where it
ENTERED a given program — e.g. Brevant not in Iowa, DEKALB/Channel not in
Illinois — true negatives, not parse gaps.)

- rag/chunk.py: gated `include_region` on _render_gh_plot_chunk; the 3 university
  sources route through it so the region/district is in the embedded chunk +
  labeled "variety trial (cross-vendor, independent third-party)". Existing plot
  sources (gh/lg/agrigold/proharvest) unchanged.
- requirements.txt: openpyxl (Illinois XLSX; scrape-time only).
- sources.json + README/CLAUDE/lessons: registered + attributed; lessons
  trial-data + Pioneer entries updated (Pioneer/DEKALB performance now available
  indirectly via these trials).

Validation: all 123 chunk via rag.chunk.chunks_from_trial (0 errors), 0
out-of-range yields, 0 dup keys. Public land-grant data; attribution recorded in
each tos_note. CI rebuilds the index from the committed corpus.

2026-06-10 08:35:50 -04:00

3.1 KiB

Raw Blame History

Corn yield trial — University of Illinois VT, Region 3, IL 2024

Publisher: University of Illinois Variety Testing (independent cross-vendor trial)
Crop: Corn
State: IL
Year: 2024
Region: Region 3
Rotation: corn following soybean
Cooperator / host: Luke Merritt
County: Pike
Sites: Perry, Urbana
Soil type: Clarksdale silt loam
Tillage: Field cultivator
Planted: 2024-04-25
Harvested: 2024-09-25
Source XLSX: https://vt.cropsci.illinois.edu/wp-content/uploads/2024/11/Region-3-CornTable-2024.xlsx
Index page: https://vt.cropsci.illinois.edu/corn/

Results (ranked by regional yield)

Rank	Brand	Product	Traits	Yield	Moisture	Lodging	Maturity
1	Prairie	6755	-	266.5742	17.86	0.33	110
2	Prairie	5994	-	256.3463	16.58	0.335	109
3	Sun Prairie Seeds	SP2409 VT4P	GT:C2R2 HT:G IST:M	247.6018	16.74	0.335	107
4	Power Plus	4V73AM	GT:C2 HT:B IST:M	244.8461	16.88	0.335	109
5	Prairie	7184	-	242.9807	18.81	0	112
6	Prairie	6251	-	242.3028	17.52	0.185	112
7	Whisnand	WH303VT2P	GT:C2G IST:L	233.0549	20.15	0.8400000000000001	115
8	Renk	RK832SSPRO	GT:C2R3 HT:B IST:M	232.9874	19.68	0	112
9	Burrus	6N54 VT2P	GT:C2 HT:G IST:M	231.2472	18.9	0	113
10	Sun Prairie Seeds	SP2789 VT2P RIB	GT:C2 HT:B IST:M	228.7972	20.52	0	113
11	Prairie	6854	-	225.5301	16.32	0.335	110
12	Sun Prairie Seeds	SP2903 TRE	GT:C2L HT:G IST:M	225.3816	18.89	0	114
13	NK	1056	GT:C2L HT:B IST:L	223.9331	18.06	0.16	110
14	Renk	RK800VT4P	GT:C2R2 HT:G IST:M	222.0746	18.02	0.32499999999999996	110
15	Renk	RK825VT4P	GT:C2R2 HT:G IST:M	221.0942	20.41	0	112
16	NK	1307	GT:C2R2L HT:B IST:L	220.9312	20.5	0	113
17	Whisnand	WH402VT2P	GT:C2G IST:L	220.2514	19.67	0.185	114
18	NK	1480	GT:C2R2L HT:B IST:L	218.3955	18.81	0.115	114
19	Prairie	4885	-	217.8612	15.17	0.335	108
20	Prairie	5851	-	217.6434	16.32	0.67	109
21	Whisnand	WH401TRE	GT:C2 HT:G IST:L	216.8849	19.8	0.18	115
22	Renk	RK921VT2P	GT:C2 HT:G IST:M	215.724	19.92	0	115
23	NK	1228	GT:C2 HT:B IST:L	215.4654	19.77	0.295	112
24	Sun Prairie Seeds	SPX4717 SSP	GT:C2R3L HT:B IST:M	215.4316	19.23	0.69	113
25	Prairie	8683	-	215.0605	19.85	0.195	115
26	Prairie	4991	-	214.2137	15.26	0.165	107
27	Burrus	8M81 TRE	GT:C2L HT:G IST:M	206.7705	23.18	0	117
28	Burrus	4W42 PCE	GT:C3 HT:B IST:M	206.3251	17.02	0.165	108
29	Prairie	8864	-	205.6352	18.88	0.17	114
30	Renk	RK958VT2P	GT:C2 HT:G IST:M	200.3988	20.62	0	115
31	Custom Farm Seed	113-47C	IST:L	197.2022	19.57	0	113
32	Prairie	9703	-	193.8464	20.74	0	116

3.1 KiB Raw Blame History

Corn yield trial — University of Illinois VT, Region 3, IL 2024

Results (ranked by regional yield)

3.1 KiB

Raw Blame History