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seed-mcp/corpus/ohio_ocpt_trials/ocpt-soybeans-2025-central-late.json
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

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{
"source": "ohio_ocpt_trials",
"source_key": "ocpt-soybeans-2025-central-late",
"data_type": "trial",
"vendor": "The Ohio State University",
"brand_aggregator": "Ohio Corn/Soybean Performance Test publishes",
"brand": "Ohio Crop Performance Test",
"crop": "soybeans",
"state": "OH",
"state_abbrev": "oh",
"year": 2025,
"region": "Central",
"site": "late maturity",
"cooperator": "C1=Mercer Co.; C2=Licking Co.",
"county": null,
"soil_type": null,
"previous_crop": null,
"tillage": null,
"table_label": "TABLE 6: The 2025 Ohio Soybean Performance Trials, Central Region - Late Varieties (RM 3.4-3.9)",
"results": [
{
"rank": 1,
"brand": "GROWMARK, INC.",
"product": "HS 34F30",
"traits": "XF",
"metrics": {
"RM": 3.4,
"Yield C1": 74.5,
"Yield C2": 95.3,
"Yield": 84.9,
"Yield 2yr Mean": 75.9
}
},
{
"rank": 2,
"brand": "GROWMARK, INC.",
"product": "HS 35E50",
"traits": "EN",
"metrics": {
"RM": 3.5,
"Yield C1": 73.1,
"Yield C2": 95.3,
"Yield": 84.2
}
},
{
"rank": 3,
"brand": "Ebberts Field Seeds",
"product": "E3590 E3",
"traits": "EN",
"metrics": {
"RM": 3.5,
"Yield C1": 75.4,
"Yield C2": 91.6,
"Yield": 83.5
}
},
{
"rank": 4,
"brand": "Axis Seed",
"product": "3605XF",
"traits": "XF",
"metrics": {
"RM": 3.6,
"Yield C1": 72.1,
"Yield C2": 94.5,
"Yield": 83.3,
"Yield 2yr Mean": 80.7
}
},
{
"rank": 5,
"brand": "Asgrow",
"product": "AG39XF3",
"traits": "XF",
"metrics": {
"RM": 3.9,
"Yield C1": 72.7,
"Yield C2": 92.6,
"Yield": 82.7,
"Yield 2yr Mean": 78
}
},
{
"rank": 6,
"brand": "Xitavo",
"product": "XO 3555E",
"traits": "EN",
"metrics": {
"RM": 3.5,
"Yield C1": 68.6,
"Yield C2": 96.5,
"Yield": 82.6,
"Yield 2yr Mean": 78.5
}
},
{
"rank": 7,
"brand": "Great Heart Seed Co.",
"product": "GT-3470ES",
"traits": "EN",
"metrics": {
"RM": 3.4,
"Yield C1": 71.7,
"Yield C2": 92.6,
"Yield": 82.2
}
},
{
"rank": 8,
"brand": "Dyna-Gro",
"product": "S36EN36",
"traits": "EN",
"metrics": {
"RM": 3.6,
"Yield C1": 75.2,
"Yield C2": 88.8,
"Yield": 82
}
},
{
"rank": 9,
"brand": "Asgrow",
"product": "AG35XF5",
"traits": "XF",
"metrics": {
"RM": 3.5,
"Yield C1": 71.4,
"Yield C2": 91.9,
"Yield": 81.7
}
},
{
"rank": 10,
"brand": "Seed Consultants, Inc.",
"product": "SC7355ETM",
"traits": "EN",
"metrics": {
"RM": 3.5,
"Yield C1": 72.6,
"Yield C2": 90.6,
"Yield": 81.6,
"Yield 2yr Mean": 81.2
}
},
{
"rank": 11,
"brand": "GROWMARK, INC.",
"product": "HS 36F40",
"traits": "XF",
"metrics": {
"RM": 3.6,
"Yield C1": 72.1,
"Yield C2": 91,
"Yield": 81.6,
"Yield 2yr Mean": 77.4
}
},
{
"rank": 12,
"brand": "Ebberts Field Seeds",
"product": "E3880 E3",
"traits": "EN",
"metrics": {
"RM": 3.8,
"Yield C1": 68.2,
"Yield C2": 94,
"Yield": 81.1,
"Yield 2yr Mean": 76
}
},
{
"rank": 13,
"brand": "Confluence Genetics",
"product": "BH35A233",
"traits": "CV",
"metrics": {
"RM": 3.5,
"Yield C1": 69,
"Yield C2": 92.8,
"Yield": 80.9,
"Yield 2yr Mean": 74.3
}
},
{
"rank": 14,
"brand": "Seed Genetics Direct",
"product": "ET-5734E3",
"traits": "EN",
"metrics": {
"RM": 3.4,
"Yield C1": 68.7,
"Yield C2": 92.1,
"Yield": 80.4
}
},
{
"rank": 15,
"brand": "Axis Seed",
"product": "3406E",
"traits": "EN",
"metrics": {
"RM": 3.4,
"Yield C1": 72.3,
"Yield C2": 88.2,
"Yield": 80.3
}
},
{
"rank": 16,
"brand": "Asgrow",
"product": "AG36XF4",
"traits": "XF",
"metrics": {
"RM": 3.6,
"Yield C1": 64.1,
"Yield C2": 95.2,
"Yield": 79.7,
"Yield 2yr Mean": 77.7
}
},
{
"rank": 17,
"brand": "GROWMARK, INC.",
"product": "HS 34E40",
"traits": "EN",
"metrics": {
"RM": 3.4,
"Yield C1": 73.7,
"Yield C2": 85.2,
"Yield": 79.5,
"Yield 2yr Mean": 77.6
}
},
{
"rank": 18,
"brand": "Viking|Blue River",
"product": "39R4",
"traits": "CV",
"metrics": {
"RM": 3.9,
"Yield C1": 67.9,
"Yield C2": 90.5,
"Yield": 79.2,
"Yield 2yr Mean": 76.9
}
},
{
"rank": 19,
"brand": "Axis Seed",
"product": "3616E",
"traits": "EN",
"metrics": {
"RM": 3.6,
"Yield C1": 73.4,
"Yield C2": 84.7,
"Yield": 79.1
}
},
{
"rank": 20,
"brand": "Ebberts Field Seeds",
"product": "E3690 E3",
"traits": "EN",
"metrics": {
"RM": 3.6,
"Yield C1": 67.3,
"Yield C2": 90.3,
"Yield": 78.8,
"Yield 2yr Mean": 79.4
}
},
{
"rank": 21,
"brand": "Confluence Genetics",
"product": "BH39A150",
"traits": "CV",
"metrics": {
"RM": 3.9,
"Yield C1": 68,
"Yield C2": 89.5,
"Yield": 78.8
}
},
{
"rank": 22,
"brand": "Shur Grow",
"product": "SG3500E3",
"traits": "EN",
"metrics": {
"RM": 3.5,
"Yield C1": 67.4,
"Yield C2": 89.8,
"Yield": 78.6
}
},
{
"rank": 23,
"brand": "Shur Grow",
"product": "SG3933E3S",
"traits": "EN",
"metrics": {
"RM": 3.9,
"Yield C1": 69,
"Yield C2": 88.2,
"Yield": 78.6
}
},
{
"rank": 24,
"brand": "Axis Seed",
"product": "3525E",
"traits": "EN",
"metrics": {
"RM": 3.5,
"Yield C1": 66.3,
"Yield C2": 89.7,
"Yield": 78,
"Yield 2yr Mean": 76.2
}
},
{
"rank": 25,
"brand": "Seed Consultants, Inc.",
"product": "SC7385ETM",
"traits": "EN",
"metrics": {
"RM": 3.8,
"Yield C1": 68,
"Yield C2": 88,
"Yield": 78,
"Yield 2yr Mean": 75.6
}
},
{
"rank": 26,
"brand": "NK Seeds",
"product": "NK38-B5E3S",
"traits": "EN",
"metrics": {
"RM": 3.8,
"Yield C1": 67.2,
"Yield C2": 88.5,
"Yield": 77.9
}
},
{
"rank": 27,
"brand": "Beck's",
"product": "384AA",
"traits": "CV",
"metrics": {
"RM": 3.8,
"Yield C1": 67.7,
"Yield C2": 87.7,
"Yield": 77.7
}
},
{
"rank": 28,
"brand": "Shur Grow",
"product": "CT3896E3S",
"traits": "EN",
"metrics": {
"RM": 3.8,
"Yield C1": 68.3,
"Yield C2": 86.7,
"Yield": 77.5
}
},
{
"rank": 29,
"brand": "DonMario",
"product": "DM38E54",
"traits": "EN",
"metrics": {
"RM": 3.8,
"Yield C1": 67.9,
"Yield C2": 86.5,
"Yield": 77.2,
"Yield 2yr Mean": 77
}
},
{
"rank": 30,
"brand": "Dyna-Gro",
"product": "S38EN75",
"traits": "EN",
"metrics": {
"RM": 3.8,
"Yield C1": 63.2,
"Yield C2": 91.2,
"Yield": 77.2,
"Yield 2yr Mean": 77.2
}
},
{
"rank": 31,
"brand": "Confluence Genetics",
"product": "BH39A232",
"traits": "CV",
"metrics": {
"RM": 3.9,
"Yield C1": 63.4,
"Yield C2": 90.1,
"Yield": 76.8,
"Yield 2yr Mean": 75.1
}
},
{
"rank": 32,
"brand": "GROWMARK, INC.",
"product": "HS 37E40",
"traits": "EN",
"metrics": {
"RM": 3.7,
"Yield C1": 65.2,
"Yield C2": 88.3,
"Yield": 76.8,
"Yield 2yr Mean": 75.7
}
},
{
"rank": 33,
"brand": "Axis Seed",
"product": "3835E",
"traits": "EN",
"metrics": {
"RM": 3.8,
"Yield C1": 67.8,
"Yield C2": 85.3,
"Yield": 76.6,
"Yield 2yr Mean": 72.2
}
},
{
"rank": 34,
"brand": "Seed Consultants, Inc.",
"product": "SC7364ETM",
"traits": "EN",
"metrics": {
"RM": 3.6,
"Yield C1": 65.2,
"Yield C2": 87.8,
"Yield": 76.5,
"Yield 2yr Mean": 76.6
}
},
{
"rank": 35,
"brand": "Shur Grow",
"product": "SG3784E3",
"traits": "EN",
"metrics": {
"RM": 3.7,
"Yield C1": 63.1,
"Yield C2": 89.8,
"Yield": 76.5,
"Yield 2yr Mean": 75.4
}
},
{
"rank": 36,
"brand": "Xitavo",
"product": "XO 3855E",
"traits": "EN",
"metrics": {
"RM": 3.8,
"Yield C1": 68.3,
"Yield C2": 84.5,
"Yield": 76.4,
"Yield 2yr Mean": 74.1
}
},
{
"rank": 37,
"brand": "Seed Consultants, Inc.",
"product": "SC7375ETM",
"traits": "EN",
"metrics": {
"RM": 3.7,
"Yield C1": 66.5,
"Yield C2": 85.5,
"Yield": 76,
"Yield 2yr Mean": 76.6
}
},
{
"rank": 38,
"brand": "Xitavo",
"product": "XO 3655E",
"traits": "EN",
"metrics": {
"RM": 3.6,
"Yield C1": 69.6,
"Yield C2": 82.1,
"Yield": 75.9,
"Yield 2yr Mean": 73.7
}
},
{
"rank": 39,
"brand": "Seed Genetics Direct",
"product": "ET-5735E3",
"traits": "EN",
"metrics": {
"RM": 3.5,
"Yield C1": 66.1,
"Yield C2": 85.4,
"Yield": 75.8
}
},
{
"rank": 40,
"brand": "Xitavo",
"product": "XO 3456E",
"traits": "EN",
"metrics": {
"RM": 3.4,
"Yield C1": 71.1,
"Yield C2": 77.5,
"Yield": 74.3
}
},
{
"rank": 41,
"brand": "Seed Genetics Direct",
"product": "ET-4738E3",
"traits": "EN",
"metrics": {
"RM": 3.8,
"Yield C1": 59.5,
"Yield C2": 88.4,
"Yield": 74,
"Yield 2yr Mean": 76.2
}
},
{
"rank": 42,
"brand": "NK Seeds",
"product": "NK34-P4E3S",
"traits": "EN",
"metrics": {
"RM": 3.4,
"Yield C1": 67,
"Yield C2": 80.7,
"Yield": 73.9
}
},
{
"rank": 43,
"brand": "DonMario",
"product": "DM36E94",
"traits": "EN",
"metrics": {
"RM": 3.6,
"Yield C1": 60.6,
"Yield C2": 86.8,
"Yield": 73.7,
"Yield 2yr Mean": 73.3
}
},
{
"rank": 44,
"brand": "Shur Grow",
"product": "CT3604E3S",
"traits": "EN",
"metrics": {
"RM": 3.6,
"Yield C1": 65,
"Yield C2": 81.7,
"Yield": 73.4
}
},
{
"rank": 45,
"brand": "Axis Seed",
"product": "3514ES",
"traits": "EN",
"metrics": {
"RM": 3.5,
"Yield C1": 61.8,
"Yield C2": 84.2,
"Yield": 73,
"Yield 2yr Mean": 73.4
}
},
{
"rank": 46,
"brand": "Seed Genetics Direct",
"product": "ET-4736E3",
"traits": "EN",
"metrics": {
"RM": 3.6,
"Yield C1": 62.5,
"Yield C2": 80.4,
"Yield": 71.5,
"Yield 2yr Mean": 73
}
},
{
"rank": 47,
"brand": "Confluence Genetics",
"product": "N35D950S",
"traits": "CV",
"metrics": {
"RM": 3.5,
"Yield C1": 66.4,
"Yield C2": 75.1,
"Yield": 70.8,
"Yield 2yr Mean": 72.6
}
},
{
"rank": 48,
"brand": "Confluence Genetics",
"product": "BH37U221",
"traits": "CV",
"metrics": {
"RM": 3.7,
"Yield C1": 64.9,
"Yield C2": 75,
"Yield": 70
}
},
{
"rank": 49,
"brand": "Xitavo",
"product": "XO 3705E",
"traits": "EN",
"metrics": {
"RM": 3.7,
"Yield C1": 64.1,
"Yield C2": 75.8,
"Yield": 70
}
},
{
"rank": 50,
"brand": "Confluence Genetics",
"product": "C38H052S",
"traits": "CV",
"metrics": {
"RM": 3.7,
"Yield C1": 63.6,
"Yield C2": 75.8,
"Yield": 69.7,
"Yield 2yr Mean": 67.7
}
},
{
"rank": 51,
"brand": "Confluence Genetics",
"product": "BH36U203",
"traits": "CV",
"metrics": {
"RM": 3.6,
"Yield C1": 58,
"Yield C2": 80.2,
"Yield": 69.1
}
},
{
"rank": 52,
"brand": "Confluence Genetics",
"product": "BH37U222",
"traits": "CV",
"metrics": {
"RM": 3.7,
"Yield C1": 64.2,
"Yield C2": 73.4,
"Yield": 68.8
}
},
{
"rank": 53,
"brand": "Confluence Genetics",
"product": "BH37Q218",
"traits": "CV",
"metrics": {
"RM": 3.7,
"Yield C1": 61.4,
"Yield C2": 75.5,
"Yield": 68.5,
"Yield 2yr Mean": 70.9
}
},
{
"rank": 54,
"brand": "Confluence Genetics",
"product": "C37H051S",
"traits": "CV",
"metrics": {
"RM": 3.7,
"Yield C1": 60.3,
"Yield C2": 73.8,
"Yield": 67.1
}
}
],
"n_results": 54,
"tos_note": "© OSU on the report; explicit no-endorsement clause; public CFAES extension publication; attribute Ohio Corn/Soybean Performance Test, OSU CFAES.",
"source_urls": [
"https://ohiocroptest.cfaes.osu.edu/soy2025/2025OCJwithproteinandoil.pdf"
],
"fetched_at": "2026-06-10T12:27:33.673828+00:00",
"scraper_version": "0.1.0"
}
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