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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

3.4 KiB

Raw Blame History

Soybean yield trial — Iowa Central District (Early Season), 2025

Source: Iowa Crop Performance Tests (independent third-party trial)
Publisher: Iowa State University / Iowa Crop Improvement Association
Crop: Soybean
State: IA
District: Central
Maturity season: Early Season
Year: 2025
Experiment mean yield: 69.9 bu/a
Cooperator sites: Missouri Valley, Glidden, Nevada, Keystone, Clarence
URL: https://www.croptesting.iastate.edu/Soybean/SoybeanDistrict2.aspx

Results (by yield, all brands)

Rank	Company	Entry	Traits	MG	Yield	WestYield	EastYield	Missouri Valley	Glidden	Nevada	Keystone	Clarence
1	Dyna-Gro	S27XF26	RR2XF	2.7	74.2	75.2	72.7	78.6	73.9	73.2	71.6	73.3
2	Golden Harvest	GH2315E3	E3	2.3	73.1	74.2	71.5	77.6	72.9	72.1	70.2	72.4
3	Viking/Blue River	27B4	Conv	2.7	72.3	74	68	85.6	72.3	64	64.6	75.3
4	Renk	G2300E	E3	2.3	72.2	71.7	70.4	77.8	71.8	65.4	70.5	75.1
5	Renk	G2480E	E3	2.4	72.1	72	69	80.3	72	63.8	68.6	74.5
6	Golden Harvest	GH2674E3	E3	2.6	72	71.7	70.9	76.9	70.9	67.3	68.6	77
7	Renk	G2790E	E3	2.7	72	73.4	68.4	79.6	74.1	66.5	67.9	70.9
8	NK Seeds	NK26-M6E3	E3	2.6	71.7	72.8	70.6	75.2	71.9	71.5	69.5	70.9
9	Dyna-Gro	S25EN74	E3	2.5	71.6	72.7	68.9	77.7	71.9	68.6	66.7	71.5
10	P3 Genetics	2527E	E3	2.7	71.3	71	70	76.8	69.5	66.7	73.5	69.9
11	Renk	RS255NXF	RR2XF	2.5	71.2	73	69.9	76.9	69.2	72.9	63.2	73.6
12	Renk	RS266E	E3	2.6	71	74.7	66.9	80.9	73.3	70	59.9	70.7
13	P3 Genetics	2424E	E3	2.4	71	71.5	69.6	80.2	66.6	67.8	64.4	76.5
14	Xitavo	XO 2556E	E3	2.5	71	72.5	69.8	75.4	71.1	71	69.5	68.8
15	Asgrow	AG25XF5	RR2XF	2.5	71	71.2	69	78.8	69.2	65.5	67.5	74.1
16	P3 Genetics	2626E	E3	2.6	70.5	71.4	68.2	81.2	65.9	67.1	67.2	70.3
17	Nutech/G2 Genetics	25N05E	E3	2.5	70.5	72.6	67.1	82.6	69.5	65.8	59.9	75.7
18	Pioneer	P25A16E	E3	2.5	70.4	70.5	68.8	76.9	69.3	65.3	65.5	75.5
19	Xitavo	XO 2735E	E3	2.7	69.7	69.2	67.2	75.5	70.3	61.8	68.2	71.8
20	Pioneer	P23A40E	E3	2.3	68.8	69.8	68.2	73	67.8	68.8	61.2	74.6
21	ISU	IAS25C2	Conv	2.5	68.3	70	66.7	73.8	68	68.2	61.7	70.3
22	Xitavo	XO 2366E	E3	2.3	67.7	69.4	64.4	77.6	69	61.5	61.7	69.9
23	Asgrow	AG27XF4	RR2XF	2.7	67.2	65.3	67.9	71	61.5	63.4	63.8	76.5
24	ISU	IAS27C3	Conv	2.7	65.9	65.5	63.7	73.2	65.6	57.8	60.4	72.8
25	Confluence Genetics	BX27Q266	Conv	2.7	64.3	64.1	64.5	67.3	62.6	62.5	59.3	71.8
26	Cornelius	CB24XF75	RR2XF	2.4	64.2	63.2	65	60.9	65.3	63.5	58.8	72.7
27	Confluence Genetics	N2358	Conv	2.3	61.2	58.4	62.3	61.2	56.8	57.1	56.6	73.3

Top 5 by Yield: S27XF26 (Dyna-Gro) 74.2, GH2315E3 (Golden Harvest) 73.1, 27B4 (Viking/Blue River) 72.3, G2300E (Renk) 72.2, G2480E (Renk) 72.1.

3.4 KiB Raw Blame History

Soybean yield trial — Iowa Central District (Early Season), 2025

Results (by yield, all brands)

3.4 KiB

Raw Blame History