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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

4.3 KiB

Raw Blame History

Soybean yield trial — Iowa North District (Full Season), 2024

Source: Iowa Crop Performance Tests (independent third-party trial)
Publisher: Iowa State University / Iowa Crop Improvement Association
Crop: Soybean
State: IA
District: North
Maturity season: Full Season
Year: 2024
Experiment mean yield: 62.2 bu/a
Cooperator sites: Sutherland, Corwith, Alexander, Marble Rock, Oelwein
URL: https://www.croptesting.iastate.edu/Soybean/SoybeanDistrict2.aspx

Results (by yield, all brands)

Rank	Company	Entry	Traits	MG	Yield	WestYield	EastYield	Sutherland	Corwith	Alexander	Marble Rock	Oelwein
1	Nutech/G2 Genetics	26N08E	E3	2.6	69.2	67.9	70.5	75.7	58.7	69.3	76.8	65.3
2	Latham	L 2391 E3	E3	2.3	66.7	67	66.2	73.7	60.6	66.7	71.9	60
3	Asgrow	AG27XF4	RR2XF	2.7	66.7	66.8	66.3	73.7	62.9	63.8	71.7	63.3
4	LOYAL BRAND	L2560E	E3	2.5	66.5	67.2	66.9	72.3	60.5	69	74.2	57.4
5	Renk	RS255NXF	RR2XF	2.5	65.8	65.5	65.1	74.9	57.9	63.6	76.5	55.3
6	Renk	G2480E	E3	2.4	65.5	66.4	64.7	72.3	59.8	67.2	64.1	62.9
7	Nutech/G2 Genetics	25N05E	E3	2.5	65.2	65.5	65	71.6	59.8	65.1	69.4	60.5
8	Viking/Blue River	27B4	Conv	2.7	64.6	63.6	64.1	68	62.3	60.6	72.2	59.7
9	Latham	L 2551 E3	E3	2.5	64.6	64.6	64.3	73	58.2	62.5	72.7	57.6
10	Nutech/G2 Genetics	27N03E	E3	2.7	64.4	65.2	63.7	72.5	58.4	64.6	70.2	56.3
11	Renk	G2570ES	E3	2.5	64.3	66	63.4	75.3	57.6	65.3	70.9	54
12	Golden Harvest	GH2315E3	E3	2.3	64.2	66.5	62.3	74.6	60.2	64.6	68.7	53.8
13	Nutech/G2 Genetics	27N07E	E3	2.7	63.8	63.5	63.8	70.4	57.3	62.8	73.5	55.1
14	P3 Genetics	2424E	E3	2.4	63.6	63.4	62.1	70.8	59.6	59.8	72.8	53.8
15	Nutech/G2 Genetics	24N05E	E3	2.4	63.3	63.9	63.9	67.4	58.4	65.9	69.2	56.5
16	Cornelius	CB22XF52	RR2XF	2.2	63	62.4	64.7	72.7	49.4	65	75.5	53.7
17	Iowa State	IAS27C1	Conv	2.7	62.8	61.8	63.3	68.3	56.1	61.1	70.9	57.8
18	Viking/Blue River	2418N	Conv	2.4	62.6	62.7	61.8	70.3	55.2	62.7	67.5	55.1
19	Renk	G2790E	E3	2.7	62	62.2	59.9	70.4	58.5	57.8	67.5	54.4
20	Pioneer	P23A40E	E3	2.3	61.9	62.6	61.6	69.8	53.7	64.2	66.5	54.3
21	Pioneer	P25A16E	E3	2.5	61.7	62.6	61.6	69.7	52.7	65.5	66.1	53.1
22	Asgrow	AG25XF5	RR2XF	2.5	61.5	63.4	60.1	73	55.1	62.1	63.4	54.8
23	Benson Hill	BH23H228	Conv	2.3	61	62.6	61.8	69.2	52.1	66.6	63.3	55.6
24	Viking/Blue River	23B5	Conv	2.3	60.9	59.2	62.7	69.4	47.5	60.7	71.9	55.6
25	Xitavo	XO 2444E	E3	2.4	60.8	61.5	61.1	68.9	52.2	63.4	67.3	52.6
26	Xitavo	XO 2305E	E3	2.3	60.4	61.7	58.8	71	55.6	58.5	67.5	50.4
27	LOYAL BRAND	L2370E	E3	2.3	60.2	61.1	58.4	71.2	53.2	58.9	67.9	48.6
28	Iowa State	IAS25C2	Conv	2.5	60	58.9	59	65.2	57.9	53.7	67.6	55.7
29	Golden Harvest	GH2674E3	E3	2.6	59.3	61.1	57	71.1	53.5	58.6	67.7	44.7
30	P3 Genetics	2523E	E3	2.3	58.5	59.3	57.3	68.7	52.2	57.1	65.4	49.3
31	Iowa State	IAS27C3	Conv	2.7	58.3	59.7	57.7	69.1	49.7	60.3	62.1	50.6
32	Benson Hill	BH25C137	Conv	2.5	57.5	57.9	58.2	66.4	45.9	61.3	64	49.2
33	Renk	G2390E	E3	2.3	57.3	57.3	57.7	64.8	49.1	58.1	64.2	50.7
34	Xitavo	XO 2735E	E3	2.7	56.9	56.4	56.9	65.2	49.5	54.6	68.4	47.9
35	Legacy Seeds	DF 262 NF	Conv	2.6	55.9	56.2	57.4	61.6	45	61.9	61.2	49.1
36	Xitavo	XO 2625E	E3	2.6	55.1	56.6	51.6	66.8	53.5	49.5	57.2	48.2

Top 5 by Yield: 26N08E (Nutech/G2 Genetics) 69.2, L 2391 E3 (Latham) 66.7, AG27XF4 (Asgrow) 66.7, L2560E (LOYAL BRAND) 66.5, RS255NXF (Renk) 65.8.

4.3 KiB Raw Blame History

Soybean yield trial — Iowa North District (Full Season), 2024

Results (by yield, all brands)

4.3 KiB

Raw Blame History