Files
seed-mcp/corpus/ohio_ocpt_trials/ocpt-corn-2024-sw-3yr-summary.md
T
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

2.1 KiB

Corn yield trial — Summary, OH (SW, 2024)

  • Publisher: Ohio Crop Performance Test (independent third-party, all brands)
  • Vendor: The Ohio State University (CFAES extension)
  • Crop: Corn
  • Year: 2024
  • Region: SW
  • Site: Summary
  • Source table: TABLE 3. Three year hybrid performance in SOUTHWESTERN/WEST CENTRAL/CENTRAL Ohio, 2022-2024.
  • Source PDF: https://ohiocroptest.cfaes.osu.edu/corntrials/CountryJournal2024.pdf
  • Note: © OSU on the report; explicit no-endorsement clause; public CFAES extension publication; attribute Ohio Corn/Soybean Performance Test, OSU CFAES.

Results (by yield rank)

Rank Brand Hybrid/Variety Traits Yield Harv. Moisture Stalk Lodging Final Stand Emergence Test Wt.
1 SEED CONSULTANTS SC 1112AM - 290.7 20.6 0 331 95 55.8
2 SEED CONSULTANTS SC 1093AM - 290.5 21.8 0 327 95 55.1
3 SEED GENETICS DIRECT Direct 2111-AA - 290.3 21.7 0 354 94 55.7
4 GOLDEN HARVEST G11V76-AA - 287.1 22 0 357 95 55.6
5 SHUR GROW SG-7153V - 285.3 21.9 0 324 95 56
6 FS INVISION FS 6017V RIB - 285.2 19.6 0 352 95 55.2
7 GOLDEN HARVEST G10L16-DV - 284.3 21.8 0 354 97 54.3
8 CHANNEL 214-78DGVT2PRIB - 283.6 20.9 0 341 97 56.2
9 EBBERTS 7209TR RIB - 282.3 19.6 0 328 93 55.5
10 SEED GENETICS DIRECT Direct 3111-D - 282.3 22.5 0 353 95 54
11 SHUR GROW SG-7233DGVT2 - 282.1 21.6 0 341 96 54.4
12 DEKALB DKC59-82RIB - 281.4 19.5 1 360 97 55.7
13 EBBERTS 6883DGVT2P RIB - 279.4 20.9 0 361 94 55.3
14 CHANNEL 207-87VT2PRIB - 276.2 18.5 0 329 95 56.6
15 BA GENETICS BA 23-14 VT2P - 275.1 22.4 0 345 95 55.5
16 SEED GENETICS DIRECT Direct 0110-3110 - 270.9 20.9 0 374 97 55
17 SEED GENETICS DIRECT Direct 8115-3110 - 261.8 23.6 1 343 93 54.1