Files
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

2.1 KiB

Soybean yield trial — Cartland, IN, 2024

  • Source: AgriGold plot report (cross-vendor head-to-head)
  • Vendor: AgReliant Genetics / AgriGold
  • Crop: Soybean
  • State: IN
  • County: Jackson
  • City: Cartland
  • Year: 2024
  • Plot ID: 144363
  • Cooperator: George and Grover Mellencamp
  • Plot average: 87.74 BU/Ac
  • Planted: 2024-05-24
  • Harvested: 2024-10-10
  • Population: 140,000 seeds/acre
  • Row width: 15.0"
  • # Rows: 16
  • Tillage: No Till
  • Previous crop: Corn
  • Irrigation: None
  • URL: https://www.agrigold.com/soybeans/performance/soybean-yield-results/144363

Results (by rank)

Rank Brand Product Trait Ck H20 Test Wt. Yield Adj Yield
- Brevant Seeds B394EE Enlist E3 - 10.5 57.7 86.6 86.6
5 AgriGold G2893E3 Enlist E3 - 10.6 57.0 90.3 90.01
11 AgriGold G3051E3 Enlist E3 - 10.4 57.0 86.7 86.51
4 AgriGold G3279E3 Enlist E3 - 10.0 58.2 90.3 90.09
3 Pioneer P32Z91E Enlist E3 - 10.1 58.4 90.9 90.77
8 AgriGold G3404E3 Enlist E3 - 9.3 57.6 88.0 87.84
9 AgriGold G3577E3 Enlist E3 - 9.1 57.2 87.2 87.16
15 Pioneer P35Z76E Enlist E3 - 10.3 57.3 80.1 80.05
14 Dyna Gro S35ES82 Enlist/STS - 10.4 59.3 83.7 83.74
9 Pioneer P37A18E Enlist E3 - 8.9 59.0 87.1 87.16
6 Pioneer P37Z06E Enlist E3 - 9.9 58.1 89.0 89.09
7 AgriGold G3854E3 Enlist E3 - 10.1 58.5 87.8 87.88
2 Pioneer P38Z63 Enlist E3 - 10.0 57.9 91.3 91.48
12 AgriGold G4051E3 Enlist E3 - 9.9 58.2 86.0 86.19
1 Pioneer P40Z57E Enlist E3 - 9.5 58.8 91.8 92.05
13 Pioneer P43Z44SE Enlist/STS - 9.6 58.9 85.9 86.11
- Brevant Seeds B394EE Enlist E3 - 9.7 58.5 86.1 86.1

Top 5 by Yield: P40Z57E (Pioneer) 91.8, P38Z63 (Pioneer) 91.3, P32Z91E (Pioneer) 90.9, G2893E3 (AgriGold) 90.3, G3279E3 (AgriGold) 90.3.