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

1.5 KiB

Soybean yield trial — Shelbyville, IN, 2024

  • Source: AgriGold plot report (cross-vendor head-to-head)
  • Vendor: AgReliant Genetics / AgriGold
  • Crop: Soybean
  • State: IN
  • County: Shelby
  • City: Shelbyville
  • Year: 2024
  • Plot ID: 142839
  • Cooperator: Keith Meltzer
  • Plot average: 64.46 BU/Ac
  • Planted: 2024-05-13
  • Harvested: 2024-10-07
  • Population: 200,000 seeds/acre
  • Row width: 7.5"
  • # Rows: 40
  • Soil type: Sandy Clay Loam
  • Tillage: Conventional
  • Previous crop: Corn
  • Irrigation: None
  • URL: https://www.agrigold.com/soybeans/performance/soybean-yield-results/142839

Results (by rank)

Rank Brand Product Trait Ck H20 Test Wt. Yield Adj Yield
- AgriGold G3854E3 Enlist E3 - 11.2 56.0 66.6 66.6
6 AgriGold G2893E3 Enlist E3 - 10.9 56.0 58.9 59.14
5 AgriGold G3051E3 Enlist E3 - 11.1 56.0 62.7 62.87
4 AgriGold G3279E3 Enlist E3 - 10.8 56.0 64.6 64.67
3 AgriGold G3404E3 Enlist E3 - 11.1 56.0 65.2 65.1
1 AgriGold G3577E3 Enlist E3 - 10.7 56.0 68.1 67.93
2 AgriGold G3854E3 Enlist E3 - 10.5 58.0 67.3 67.04
- AgriGold G3854E3 Enlist E3 - 10.5 58.0 67.3 67.3

Top 5 by Yield: G3577E3 (AgriGold) 68.1, G3854E3 (AgriGold) 67.3, G3854E3 (AgriGold) 67.3, G3854E3 (AgriGold) 66.6, G3404E3 (AgriGold) 65.2.