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

1.9 KiB

Soybean yield trial — Mount Carroll, IL, 2025

  • Source: AgriGold plot report (cross-vendor head-to-head)
  • Vendor: AgReliant Genetics / AgriGold
  • Crop: Soybean
  • State: IL
  • County: Carroll
  • City: Mount Carroll
  • Year: 2025
  • Plot ID: 145910
  • Cooperator: Lee & Terry Charles
  • Plot average: 95.56 BU/Ac
  • Planted: 2025-05-10
  • Harvested: 2025-10-06
  • Population: 140,000 seeds/acre
  • Row width: 30.0"
  • # Rows: 5
  • Soil type: Clay Loam
  • Tillage: Conventional
  • Previous crop: Corn
  • Irrigation: None
  • URL: https://www.agrigold.com/soybeans/performance/soybean-yield-results/145910

Results (by rank)

Rank Brand Product Trait Ck H20 Test Wt. Yield Adj Yield
8 Golden Harvest GH2315E3 Enlist E3 - 9.7 59.6 93.0 93.0
12 Golden Harvest GH2674E3 Enlist E3 - 9.8 59.3 89.6 89.6
13 Golden Harvest GH3035E3 Enlist E3 - 9.5 59.6 88.7 88.7
14 Becks 2260E3 Enlist E3 - 9.6 60.0 87.5 87.5
6 Becks 2370E3 Enlist E3 - 9.8 59.0 99.2 99.2
1 Becks 2470E3 Enlist E3 - 10.0 58.5 102.9 102.9
11 Becks 2660E3 Enlist E3 - 9.5 58.2 92.3 92.3
2 Becks 9494E3 EXP 2.6 Enlist E3 - 10.6 55.5 102.2 102.2
10 Becks 2770E3 Enlist E3 - 10.7 59.1 92.9 92.9
3 Becks 2950E3 Enlist E3 - 10.7 58.5 101.9 101.9
4 Becks 2970E3 Enlist E3 - 10.9 57.5 101.4 101.4
7 AgriGold G2265E3 - - 9.3 58.9 93.1 93.1
9 AgriGold G2425E3 - - 9.5 59.5 92.9 92.9
5 AgriGold G2601E3 Enlist E3 - 10.0 56.1 100.3 100.3

Top 5 by Yield: 2470E3 (Becks) 102.9, 9494E3 EXP 2.6 (Becks) 102.2, 2950E3 (Becks) 101.9, 2970E3 (Becks) 101.4, G2601E3 (AgriGold) 100.3.