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

1.4 KiB

Soybean yield trial — Belvue, KS, 2025

  • Source: AgriGold plot report (cross-vendor head-to-head)
  • Vendor: AgReliant Genetics / AgriGold
  • Crop: Soybean
  • State: KS
  • County: Pottawatomie
  • City: Belvue
  • Year: 2025
  • Plot ID: 146456
  • Cooperator: Chuck Banks
  • Plot average: 71.28 BU/Ac
  • Planted: 2025-05-14
  • Harvested: 2025-11-05
  • Population: 140,000 seeds/acre
  • Row width: 30.0"
  • # Rows: 8
  • Soil type: Silt Loam
  • Tillage: Conventional
  • Previous crop: Corn
  • Irrigation: Yes
  • Fungicide: Unknown
  • Herbicide: Unknown
  • Insecticide: None
  • URL: https://www.agrigold.com/soybeans/performance/soybean-yield-results/146456

Results (by rank)

Rank Brand Product Trait Ck H20 Test Wt. Yield Adj Yield
- AgriGold G4430XF XTENDFlex - 13.2 56.7 68.2 68.2
2 AgriGold G3552XF XTENDFlex - 13.4 55.6 72.7 72.7
1 AgriGold G3725XF XTENDFlex - 13.2 56.3 73.5 73.5
4 AgriGold G3955XF XTENDFlex - 13.2 55.8 67.5 67.5
3 AgriGold G4184XF XTENDFlex - 13.3 56.6 71.4 71.4
- AgriGold G4430XF XTENDFlex - 13.3 56.5 72.1 72.1

Top 5 by Yield: G3725XF (AgriGold) 73.5, G3552XF (AgriGold) 72.7, G4430XF (AgriGold) 72.1, G4184XF (AgriGold) 71.4, G4430XF (AgriGold) 68.2.