Files
seed-mcp/corpus/iowa_icpt_trials/icpt-corn-2025-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

394 lines
8.7 KiB
JSON

{
"source": "iowa_icpt_trials",
"source_key": "icpt-corn-2025-central-full",
"data_type": "trial",
"vendor": "Iowa State University",
"brand_aggregator": "Iowa Crop Performance Tests publishes",
"brand": "Iowa Crop Performance Tests",
"crop": "corn",
"state": "IA",
"state_abbrev": "ia",
"year": 2025,
"region": "District Central",
"district": "Central",
"season": "Full Season",
"cooperator_sites": [
"Missouri Valley",
"Glidden",
"Nevada",
"Keystone",
"Clarence"
],
"experiment_mean_yield": 220.5,
"results": [
{
"rank": 1,
"brand": "Dekalb",
"product": "DKC112-35 SSPRIB",
"traits": "LL,RR2 SSX-RIB",
"metrics": {
"RM": 112,
"Yield": 244.7,
"Yldp": 111.5,
"Moist": 19.4,
"Wyld": 249.2,
"Eyld": 238.3,
"Missouri Valley": 234.9,
"Glidden": 270.6,
"Nevada": 242.1,
"Keystone": 238.7,
"Clarence": 234.1
}
},
{
"rank": 2,
"brand": "Renk",
"product": "RK8585TRE",
"traits": "RR2 TRC",
"metrics": {
"RM": 114,
"Yield": 242.6,
"Yldp": 110.5,
"Moist": 18,
"Wyld": 248.9,
"Eyld": 232.3,
"Missouri Valley": 256.6,
"Glidden": 264.1,
"Nevada": 226.1,
"Keystone": 214.9,
"Clarence": 256
}
},
{
"rank": 3,
"brand": "Dekalb",
"product": "DKC111-62 TRERIB",
"traits": "RR2 TRE-RIB",
"metrics": {
"RM": 111,
"Yield": 240.5,
"Yldp": 109.6,
"Moist": 16.3,
"Wyld": 249.3,
"Eyld": 226.9,
"Missouri Valley": 264,
"Glidden": 256.4,
"Nevada": 227.6,
"Keystone": 233.6,
"Clarence": 219.6
}
},
{
"rank": 4,
"brand": "Epley Brothers Hybrids",
"product": "E2320",
"traits": "",
"metrics": {
"RM": 113,
"Yield": 225.1,
"Yldp": 102.6,
"Moist": 15.9,
"Wyld": 223.7,
"Eyld": 214.9,
"Missouri Valley": 249.6,
"Glidden": 232.7,
"Nevada": 188.8,
"Keystone": 231.8,
"Clarence": 224.1
}
},
{
"rank": 5,
"brand": "Prairie Hybrid Seeds",
"product": "6436",
"traits": "",
"metrics": {
"RM": 111,
"Yield": 221.2,
"Yldp": 100.8,
"Moist": 15,
"Wyld": 216.2,
"Eyld": 214.1,
"Missouri Valley": 241.1,
"Glidden": 220.9,
"Nevada": 186.6,
"Keystone": 253.8,
"Clarence": 202
}
},
{
"rank": 6,
"brand": "NuTech/G2 Genetics",
"product": "73B2V",
"traits": "LL,RR2,EN VE",
"metrics": {
"RM": 113,
"Yield": 220.8,
"Yldp": 100.6,
"Moist": 15.5,
"Wyld": 216.3,
"Eyld": 210.9,
"Missouri Valley": 253.5,
"Glidden": 218.3,
"Nevada": 177.2,
"Keystone": 243,
"Clarence": 212.6
}
},
{
"rank": 7,
"brand": "Pioneer",
"product": "P1185Q",
"traits": "LL,RR2 Qrome",
"metrics": {
"RM": 111,
"Yield": 220.6,
"Yldp": 100.5,
"Moist": 15.2,
"Wyld": 220.9,
"Eyld": 210.2,
"Missouri Valley": 242,
"Glidden": 231.1,
"Nevada": 189.7,
"Keystone": 238.3,
"Clarence": 202.7
}
},
{
"rank": 8,
"brand": "NuTech/G2 Genetics",
"product": "71B6PCE",
"traits": "LL,RR2,EN PCE",
"metrics": {
"RM": 111,
"Yield": 220.2,
"Yldp": 100.4,
"Moist": 14.6,
"Wyld": 216.8,
"Eyld": 210.8,
"Missouri Valley": 247.8,
"Glidden": 221.6,
"Nevada": 181.1,
"Keystone": 238.4,
"Clarence": 212.9
}
},
{
"rank": 9,
"brand": "Pioneer",
"product": "P1093Q",
"traits": "LL,RR2 Qrome-RIB",
"metrics": {
"RM": 110,
"Yield": 219.2,
"Yldp": 99.9,
"Moist": 15.2,
"Wyld": 216.3,
"Eyld": 213.7,
"Missouri Valley": 241.8,
"Glidden": 216.9,
"Nevada": 190.3,
"Keystone": 239.6,
"Clarence": 211.4
}
},
{
"rank": 10,
"brand": "Renk",
"product": "RK825VT4PRO",
"traits": "RR2 VT4P",
"metrics": {
"RM": 112,
"Yield": 218.2,
"Yldp": 99.4,
"Moist": 14.4,
"Wyld": 222,
"Eyld": 205.9,
"Missouri Valley": 250,
"Glidden": 224.1,
"Nevada": 191.8,
"Keystone": 242.4,
"Clarence": 183.6
}
},
{
"rank": 11,
"brand": "Prairie Hybrid Seeds",
"product": "7241 Org",
"traits": "",
"metrics": {
"RM": 112,
"Yield": 217.9,
"Yldp": 99.3,
"Moist": 15.1,
"Wyld": 210.6,
"Eyld": 208.2,
"Missouri Valley": 237.6,
"Glidden": 223.9,
"Nevada": 170.3,
"Keystone": 241.2,
"Clarence": 213.2
}
},
{
"rank": 12,
"brand": "Viking/Blue River",
"product": "76-11",
"traits": "",
"metrics": {
"RM": 111,
"Yield": 217,
"Yldp": 98.9,
"Moist": 15.2,
"Wyld": 211.6,
"Eyld": 204.3,
"Missouri Valley": 246.5,
"Glidden": 222.3,
"Nevada": 166.1,
"Keystone": 238.2,
"Clarence": 208.5
}
},
{
"rank": 13,
"brand": "Epley Brothers Hybrids",
"product": "E2230",
"traits": "",
"metrics": {
"RM": 112,
"Yield": 216.6,
"Yldp": 98.7,
"Moist": 15.3,
"Wyld": 214.1,
"Eyld": 206.9,
"Missouri Valley": 243.6,
"Glidden": 219.4,
"Nevada": 179.1,
"Keystone": 236.4,
"Clarence": 205.2
}
},
{
"rank": 14,
"brand": "Renk",
"product": "RK8501PCE",
"traits": "LL,RR2 PC",
"metrics": {
"RM": 110,
"Yield": 216.2,
"Yldp": 98.5,
"Moist": 15.9,
"Wyld": 219.5,
"Eyld": 200.4,
"Missouri Valley": 260.7,
"Glidden": 219.3,
"Nevada": 178.4,
"Keystone": 228.4,
"Clarence": 194.6
}
},
{
"rank": 15,
"brand": "Dekalb",
"product": "DKC114-43 VT2PRIB",
"traits": "RR2 VT2P-RIB",
"metrics": {
"RM": 114,
"Yield": 213.9,
"Yldp": 97.5,
"Moist": 15.1,
"Wyld": 214,
"Eyld": 204.1,
"Missouri Valley": 246.9,
"Glidden": 214.5,
"Nevada": 180.7,
"Keystone": 236.1,
"Clarence": 195.4
}
},
{
"rank": 16,
"brand": "Renk",
"product": "RK889PCE",
"traits": "LL,RR2 PC-RIB",
"metrics": {
"RM": 113,
"Yield": 213.8,
"Yldp": 97.4,
"Moist": 15.7,
"Wyld": 206.2,
"Eyld": 206.7,
"Missouri Valley": 230.3,
"Glidden": 218.3,
"Nevada": 170.1,
"Keystone": 232.3,
"Clarence": 217.7
}
},
{
"rank": 17,
"brand": "NuTech/G2 Genetics",
"product": "73J1V",
"traits": "LL,RR2,EN VE",
"metrics": {
"RM": 113,
"Yield": 212.1,
"Yldp": 96.7,
"Moist": 15.2,
"Wyld": 208.3,
"Eyld": 203,
"Missouri Valley": 243,
"Glidden": 208.8,
"Nevada": 173.1,
"Keystone": 232.8,
"Clarence": 203.2
}
},
{
"rank": 18,
"brand": "Viking/Blue River",
"product": "78-13",
"traits": "",
"metrics": {
"RM": 113,
"Yield": 204.9,
"Yldp": 93.4,
"Moist": 16.6,
"Wyld": 202.7,
"Eyld": 192.4,
"Missouri Valley": 223,
"Glidden": 221.8,
"Nevada": 163.2,
"Keystone": 207.3,
"Clarence": 206.7
}
},
{
"rank": 19,
"brand": "Prairie Hybrid Seeds",
"product": "7445",
"traits": "",
"metrics": {
"RM": 113,
"Yield": 204.8,
"Yldp": 93.3,
"Moist": 15.1,
"Wyld": 202.3,
"Eyld": 195,
"Missouri Valley": 229.8,
"Glidden": 209.2,
"Nevada": 167.9,
"Keystone": 222.3,
"Clarence": 194.7
}
}
],
"n_results": 19,
"source_urls": [
"https://www.croptesting.iastate.edu/corn/CornDistrict2.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": "2026-06-10T12:12:33.013438+00:00",
"scraper_version": "0.1.0"
}