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seed-mcp/corpus/agrigold_plot_reports/agpr-soybeans-2025-146905.md
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justin b98965a68a Two new trial sources: LG Seeds + AgriGold plot reports (+2,307 cross-vendor yield trials)
Adds the **first non-Syngenta trial coverage** to the corpus:

| Source | Docs | Publisher | URL pattern |
|---|---|---|---|
| lg_plot_reports | 1,304 | LG Seeds (AgReliant) | lgseeds.com/performance/{crop} JSON XHR |
| agrigold_plot_reports | 1,003 | AgriGold (AgReliant) | agrigold.com/{crop}/performance/{crop}-yield-results |

Total trial coverage now: gh_plot_reports (4,299) + agripro_trials (14) +
lg_plot_reports (1,304) + agrigold_plot_reports (1,003) = 6,620 trial docs.

**Both scrapers follow the gh_plot_reports template** — same RateLimitedSession
primitive, same TrialResult/PlotReport dataclass shape, same data_type="trial"
sidecar convention. The trial chunker (`rag/chunk.py:_render_trial_chunk`) is
extended to recognize both new sources; they share `_render_gh_plot_chunk`
since their sidecars are structurally identical (just different brand label).

**LG specifics:**
- POST `/performance/{crop}/GetPlots/` returns sparse listing (id, year, lat/lng)
- GET `/performance/{crop}/GetPlotData/?PlotId=X&IsSilage=Y` returns full detail
  with state, cooperator, planting/harvest dates, and **top-5 hybrids** (LG +
  competitors). Top-5 is what LG publishes publicly; not the full ranking.
- 4 crops: corn (963), soybeans (287), sorghum (10), silage (50) — first
  alfalfa absent because LG doesn't run alfalfa plots; that's variety-only data.
- 301 gotcha: www.lgseeds.com redirects to lgseeds.com which drops POST body,
  so the scraper hits the apex host directly.

**AgriGold specifics:**
- Listing: GET `/{crop}/performance/{crop}-yield-results?harvestYear={year}`
  (server-rendered HTML, ~1MB; 408 corn plots in 2025 alone)
- Detail: GET `/{crop_url}/performance/{slug}/{plot_id}` returns the **full
  ranking** (not just top-5) plus rich plot management metadata: tillage,
  previous crop, fungicide, herbicide, insecticide, irrigation, soil type,
  row width, population. Most metadata-rich of the three trial sources.
- Soybean URL slug is singular: `/soybeans/performance/soybean-yield-results/`
- Columns: Rank | Brand | Product | Trait | Ck | H20 (moisture) | Test Wt. |
  Yield | Adj Yield (check-adjusted)
- 2 crops: corn (849) + soybeans (157)

**Indexer needs no changes** — `rag/index.py` auto-discovers any directory
under corpus/ and routes by data_type. Both new sources flow into the
existing trial collection and surface via `search_trials`.

Years scraped: 2024+2025 (matching gh_plot_reports baseline). 2023 is
available via `--include-2023` on either scraper for future backfill.
2026-05-26 22:26:24 -04:00

2.3 KiB

Soybean yield trial — Litchfield, NE, 2025

  • Source: AgriGold plot report (cross-vendor head-to-head)
  • Vendor: AgReliant Genetics / AgriGold
  • Crop: Soybean
  • State: NE
  • County: Sherman
  • City: Litchfield
  • Year: 2025
  • Plot ID: 146905
  • Cooperator: Zoerb Farms
  • Plot average: 91.94 BU/Ac
  • Planted: 2025-04-29
  • Harvested: 2025-10-10
  • Population: 140,000 seeds/acre
  • Row width: 20.0"
  • # Rows: 24
  • Soil type: Silt Loam
  • Tillage: No Till
  • Previous crop: Corn
  • Irrigation: Yes
  • URL: https://www.agrigold.com/soybeans/performance/soybean-yield-results/146905

Results (by rank)

Rank Brand Product Trait Ck H20 Test Wt. Yield Adj Yield
- Pioneer P28Z30E Enlist E3 - 14.4 - 93.0 93.0
15 Pioneer P20Z14E Enlist E3 - 14.3 - 89.5 89.62
17 AgriGold G2265E3 - - 14.2 - 88.7 88.81
1 Pioneer P22Z02E Enlist E3 - 14.1 - 97.5 97.65
13 Pioneer P23Z58E Enlist E3 - 13.8 - 90.9 91.0
4 Pioneer P23Z58E Enlist E3 - 13.7 - 94.3 94.43
16 Connect CT2424E Enlist E3 - 13.3 - 89.0 89.06
7 AgriGold G2425E3 - - 13.5 - 92.4 92.48
3 Stine 24EH32 Enlist E3 - 12.9 - 94.6 94.63
14 Alloy A25E36 Enlist E3 - 12.9 - 90.9 90.95
5 Stine 26EH02 Enlist E3 - 13.4 - 94.1 94.06
18 Connect CT2725E Enlist E3 - 12.9 - 88.5 88.46
19 Stine 27EG22 Enlist E3 - 13.5 - 87.0 86.93
8 Pioneer P27Z41E Enlist E3 - 13.0 - 92.4 92.31
11 Pioneer P28Z30E Enlist E3 - 13.1 - 91.9 91.87
9 Pioneer P28Z30E Enlist E3 - 13.0 - 92.4 92.28
10 Pioneer P28Z30E Enlist E3 - 13.4 - 92.2 92.14
12 Alloy A29E36 Enlist E3 - 12.6 - 91.6 91.43
6 Stine 30EH32 Enlist E3 - 14.6 - 93.7 93.52
2 Pioneer P31Z03E Enlist E3 - 14.1 - 95.4 95.27
- Pioneer P28Z30E Enlist E3 - 13.8 - 93.3 93.3

Top 5 by Yield: P22Z02E (Pioneer) 97.5, P31Z03E (Pioneer) 95.4, 24EH32 (Stine) 94.6, P23Z58E (Pioneer) 94.3, 26EH02 (Stine) 94.1.