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54094a0d433a86af08082cd7473d2bdd3f52d4d7
seed-mcp/corpus/iowa_icpt_trials/icpt-soybeans-2024-central-full.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": "iowa_icpt_trials",
"source_key": "icpt-soybeans-2024-central-full",
"data_type": "trial",
"vendor": "Iowa State University",
"brand_aggregator": "Iowa Crop Performance Tests publishes",
"brand": "Iowa Crop Performance Tests",
"crop": "soybeans",
"state": "IA",
"state_abbrev": "ia",
"year": 2024,
"region": "District Central",
"district": "Central",
"season": "Full Season",
"cooperator_sites": [
"Missouri Valley",
"Glidden",
"Ames",
"Keystone",
"Clarence"
],
"experiment_mean_yield": 72,
"results": [
{
"rank": 1,
"brand": "Nutech/G2 Genetics",
"product": "30N06E",
"traits": "E3",
"metrics": {
"MG": 3,
"Yield": 76.5,
"WestYield": 73.6,
"EastYield": 77.5,
"Missouri Valley": 77.8,
"Glidden": 72.3,
"Ames": 70.7,
"Keystone": 72.4,
"Clarence": 89.3
}
},
{
"rank": 2,
"brand": "Asgrow",
"product": "AG31XF3",
"traits": "RR2XF",
"metrics": {
"MG": 3.1,
"Yield": 75.7,
"WestYield": 72.6,
"EastYield": 76.8,
"Missouri Valley": 72.2,
"Glidden": 77.5,
"Ames": 68.2,
"Keystone": 80,
"Clarence": 82.2
}
},
{
"rank": 3,
"brand": "Viking/Blue River",
"product": "30B4",
"traits": "Conv",
"metrics": {
"MG": 3,
"Yield": 75.4,
"WestYield": 75.2,
"EastYield": 73.9,
"Missouri Valley": 76.7,
"Glidden": 79.5,
"Ames": 69.5,
"Keystone": 68,
"Clarence": 84.2
}
},
{
"rank": 4,
"brand": "Xitavo",
"product": "XO 3224E",
"traits": "E3",
"metrics": {
"MG": 3.2,
"Yield": 74.8,
"WestYield": 70.8,
"EastYield": 77.3,
"Missouri Valley": 67.8,
"Glidden": 77.1,
"Ames": 67.4,
"Keystone": 77,
"Clarence": 87.7
}
},
{
"rank": 5,
"brand": "Dyna-Gro",
"product": "S31XF05",
"traits": "RR2XF",
"metrics": {
"MG": 3.1,
"Yield": 74.6,
"WestYield": 70.6,
"EastYield": 75.3,
"Missouri Valley": 76.6,
"Glidden": 69,
"Ames": 66.1,
"Keystone": 76,
"Clarence": 83.7
}
},
{
"rank": 6,
"brand": "Dyna-Gro",
"product": "S28XF85",
"traits": "RR2XF",
"metrics": {
"MG": 2.8,
"Yield": 74.5,
"WestYield": 70.4,
"EastYield": 75.9,
"Missouri Valley": 70.1,
"Glidden": 75.6,
"Ames": 65.4,
"Keystone": 73,
"Clarence": 89.4
}
},
{
"rank": 7,
"brand": "Nutech/G2 Genetics",
"product": "32N04E",
"traits": "E3",
"metrics": {
"MG": 3.2,
"Yield": 74.5,
"WestYield": 71.5,
"EastYield": 75.9,
"Missouri Valley": 71.6,
"Glidden": 73.1,
"Ames": 69.8,
"Keystone": 71.3,
"Clarence": 86.7
}
},
{
"rank": 8,
"brand": "Nutech/G2 Genetics",
"product": "29N05E",
"traits": "E3",
"metrics": {
"MG": 2.9,
"Yield": 74.3,
"WestYield": 72.6,
"EastYield": 73.5,
"Missouri Valley": 74.3,
"Glidden": 78,
"Ames": 65.4,
"Keystone": 73.3,
"Clarence": 81.8
}
},
{
"rank": 9,
"brand": "Dyna-Gro",
"product": "S29ES45",
"traits": "E3S",
"metrics": {
"MG": 2.9,
"Yield": 73.8,
"WestYield": 72.8,
"EastYield": 72.9,
"Missouri Valley": 74.6,
"Glidden": 77.6,
"Ames": 66.3,
"Keystone": 68.7,
"Clarence": 83.7
}
},
{
"rank": 10,
"brand": "Golden Harvest",
"product": "GH2925XF",
"traits": "RR2XF",
"metrics": {
"MG": 2.9,
"Yield": 73.6,
"WestYield": 69.1,
"EastYield": 75.8,
"Missouri Valley": 68.5,
"Glidden": 73.8,
"Ames": 65.1,
"Keystone": 77.4,
"Clarence": 84.9
}
},
{
"rank": 11,
"brand": "Xitavo",
"product": "XO 3014E",
"traits": "E3",
"metrics": {
"MG": 3,
"Yield": 73,
"WestYield": 72.2,
"EastYield": 71.1,
"Missouri Valley": 75.4,
"Glidden": 75.7,
"Ames": 65.4,
"Keystone": 64.3,
"Clarence": 83.5
}
},
{
"rank": 12,
"brand": "Nutech/G2 Genetics",
"product": "28N03E",
"traits": "E3",
"metrics": {
"MG": 2.8,
"Yield": 72.9,
"WestYield": 69.6,
"EastYield": 75.6,
"Missouri Valley": 69.7,
"Glidden": 69.1,
"Ames": 70,
"Keystone": 69.1,
"Clarence": 87.7
}
},
{
"rank": 13,
"brand": "Iowa State",
"product": "IAS29C1",
"traits": "Conv",
"metrics": {
"MG": 2.9,
"Yield": 72.9,
"WestYield": 70.3,
"EastYield": 73.3,
"Missouri Valley": 68.8,
"Glidden": 76.6,
"Ames": 65.5,
"Keystone": 74.5,
"Clarence": 80.1
}
},
{
"rank": 14,
"brand": "Pioneer",
"product": "P31T64E",
"traits": "E3",
"metrics": {
"MG": 3.1,
"Yield": 72.7,
"WestYield": 69.5,
"EastYield": 74.9,
"Missouri Valley": 67.7,
"Glidden": 71.9,
"Ames": 69,
"Keystone": 70.6,
"Clarence": 85.2
}
},
{
"rank": 15,
"brand": "P3 Genetics",
"product": "2429E",
"traits": "E3",
"metrics": {
"MG": 2.9,
"Yield": 72.6,
"WestYield": 71,
"EastYield": 74.1,
"Missouri Valley": 66.1,
"Glidden": 75.2,
"Ames": 71.6,
"Keystone": 70.5,
"Clarence": 80.1
}
},
{
"rank": 16,
"brand": "Latham",
"product": "L 2871 E3",
"traits": "E3",
"metrics": {
"MG": 2.8,
"Yield": 72.5,
"WestYield": 71,
"EastYield": 72.9,
"Missouri Valley": 72.4,
"Glidden": 71.3,
"Ames": 69.2,
"Keystone": 70.7,
"Clarence": 78.8
}
},
{
"rank": 17,
"brand": "Iowa State",
"product": "IAS31C2",
"traits": "Conv",
"metrics": {
"MG": 3.1,
"Yield": 72.4,
"WestYield": 69.2,
"EastYield": 75.8,
"Missouri Valley": 69.9,
"Glidden": 67.4,
"Ames": 70.3,
"Keystone": 73.7,
"Clarence": 83.6
}
},
{
"rank": 18,
"brand": "Iowa State",
"product": "IAS29C2",
"traits": "Conv",
"metrics": {
"MG": 2.9,
"Yield": 71.6,
"WestYield": 68,
"EastYield": 72.7,
"Missouri Valley": 67.5,
"Glidden": 71.8,
"Ames": 64.8,
"Keystone": 72,
"Clarence": 81.3
}
},
{
"rank": 19,
"brand": "Asgrow",
"product": "AG28XF3",
"traits": "RR2XF",
"metrics": {
"MG": 2.8,
"Yield": 71.6,
"WestYield": 68.6,
"EastYield": 73.5,
"Missouri Valley": 72.6,
"Glidden": 66.1,
"Ames": 67.1,
"Keystone": 68.7,
"Clarence": 84.8
}
},
{
"rank": 20,
"brand": "Latham",
"product": "L 3061 E3",
"traits": "E3",
"metrics": {
"MG": 3,
"Yield": 71.4,
"WestYield": 70,
"EastYield": 72.3,
"Missouri Valley": 63.8,
"Glidden": 78.7,
"Ames": 67.6,
"Keystone": 67.9,
"Clarence": 81.3
}
},
{
"rank": 21,
"brand": "P3 Genetics",
"product": "2331E",
"traits": "E3",
"metrics": {
"MG": 3.1,
"Yield": 71.1,
"WestYield": 65.7,
"EastYield": 75.3,
"Missouri Valley": 66.9,
"Glidden": 61.8,
"Ames": 68.4,
"Keystone": 69.5,
"Clarence": 87.9
}
},
{
"rank": 22,
"brand": "Xitavo",
"product": "XO 3105E",
"traits": "E3",
"metrics": {
"MG": 3.1,
"Yield": 71.1,
"WestYield": 72.2,
"EastYield": 70.9,
"Missouri Valley": 70,
"Glidden": 76.3,
"Ames": 70.5,
"Keystone": 63.6,
"Clarence": 78.7
}
},
{
"rank": 23,
"brand": "Cornelius",
"product": "CB29XF44",
"traits": "RR2XF",
"metrics": {
"MG": 2.9,
"Yield": 70.9,
"WestYield": 65.9,
"EastYield": 73.7,
"Missouri Valley": 66.1,
"Glidden": 68.7,
"Ames": 62.8,
"Keystone": 74.3,
"Clarence": 84.1
}
},
{
"rank": 24,
"brand": "Latham",
"product": "L 3158 XF",
"traits": "RR2XF",
"metrics": {
"MG": 3.1,
"Yield": 70.4,
"WestYield": 65,
"EastYield": 73.4,
"Missouri Valley": 64.2,
"Glidden": 64.2,
"Ames": 66.7,
"Keystone": 69.9,
"Clarence": 83.5
}
},
{
"rank": 25,
"brand": "Xitavo",
"product": "XO 2865E",
"traits": "E3",
"metrics": {
"MG": 2.8,
"Yield": 70.2,
"WestYield": 67.7,
"EastYield": 72.5,
"Missouri Valley": 68.1,
"Glidden": 66.8,
"Ames": 68,
"Keystone": 67.8,
"Clarence": 81.7
}
},
{
"rank": 26,
"brand": "Pioneer",
"product": "P28A65E",
"traits": "E3",
"metrics": {
"MG": 2.8,
"Yield": 69.2,
"WestYield": 63.4,
"EastYield": 72.5,
"Missouri Valley": 67.2,
"Glidden": 58,
"Ames": 65,
"Keystone": 68.1,
"Clarence": 84.5
}
},
{
"rank": 27,
"brand": "Golden Harvest",
"product": "GH3035E3",
"traits": "E3",
"metrics": {
"MG": 3,
"Yield": 68.2,
"WestYield": 64.5,
"EastYield": 70.4,
"Missouri Valley": 66.7,
"Glidden": 59.6,
"Ames": 67.2,
"Keystone": 65.5,
"Clarence": 78.4
}
},
{
"rank": 28,
"brand": "Xitavo",
"product": "XO 2985E",
"traits": "E3",
"metrics": {
"MG": 2.9,
"Yield": 67,
"WestYield": 62.2,
"EastYield": 71.9,
"Missouri Valley": 63,
"Glidden": 55.7,
"Ames": 68,
"Keystone": 67,
"Clarence": 80.7
}
},
{
"rank": 29,
"brand": "Benson Hill",
"product": "e31y806",
"traits": "Conv",
"metrics": {
"MG": 3.1,
"Yield": 65.4,
"WestYield": 61.7,
"EastYield": 65.9,
"Missouri Valley": 64.9,
"Glidden": 62.2,
"Ames": 58,
"Keystone": 63.3,
"Clarence": 76.6
}
},
{
"rank": 30,
"brand": "Benson Hill",
"product": "BH31Q146",
"traits": "Conv",
"metrics": {
"MG": 3.1,
"Yield": 64.1,
"WestYield": 59.1,
"EastYield": 65.9,
"Missouri Valley": 61.3,
"Glidden": 59.2,
"Ames": 57,
"Keystone": 66.4,
"Clarence": 74.4
}
}
],
"n_results": 30,
"source_urls": [
"https://www.croptesting.iastate.edu/Soybean/SoybeanDistrict2.aspx"
],
"tos_note": "Footer 'Copyright (c) ...ISU...All rights reserved' (no automation clause, no robots.txt); public ICPT data; low request rate; attribute Iowa Crop Performance Tests / ISU.",
"fetched_at": "2026-06-10T12:12:56.996237+00:00",
"scraper_version": "0.1.0"
}
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