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

2.0 KiB

Soybean yield trial — Genoa, IL, 2025

  • Source: AgriGold plot report (cross-vendor head-to-head)
  • Vendor: AgReliant Genetics / AgriGold
  • Crop: Soybean
  • State: IL
  • County: De Kalb
  • City: Genoa
  • Year: 2025
  • Plot ID: 145515
  • Cooperator: Art Kuhn
  • Plot average: 80.29 BU/Ac
  • Planted: 2025-04-28
  • Harvested: 2025-10-02
  • Population: 145,000 seeds/acre
  • Row width: 30.0"
  • # Rows: 8
  • Tillage: Conventional
  • Previous crop: Corn
  • Irrigation: None
  • URL: https://www.agrigold.com/soybeans/performance/soybean-yield-results/145515

Results (by rank)

Rank Brand Product Trait Ck H20 Test Wt. Yield Adj Yield
7 AgriGold G2003E3 Enlist E3 - 12.2 56.2 80.2 80.2
9 NK Brand NK19-T8E3 Enlist E3 - 11.7 57.2 80.0 80.0
10 NK Brand NK21-C2E3 Enlist E3 - 12.0 55.4 79.7 79.7
6 AgriGold G2003E3 Enlist E3 - 11.5 57.0 80.7 80.7
3 AgriGold V2157E - - 11.7 56.5 84.5 84.5
5 AgriGold G2265E3 - - 11.4 56.0 80.8 80.8
1 NK Brand NK23-P1E3 Enlist E3 - 11.9 56.2 87.5 87.5
2 Attain 23A6 EXP Enlist E3 - 11.5 55.9 85.7 85.7
4 AgriGold G2425E3 - - 11.3 58.2 82.9 82.9
13 AgriGold G2601E3 Enlist E3 - 11.7 56.1 78.7 78.7
8 NK Brand NK26-M6E3 Enlist E3 - 11.6 57.0 80.2 80.2
12 Attain 26A6 EXP Enlist E3 - 10.7 56.5 79.2 79.2
14 AgriGold G2893E3 Enlist E3 - 11.3 56.8 77.4 77.4
15 NK Brand NK28-G7E3S Enlist E3 - 11.2 55.6 74.7 74.7
11 AgriGold G3051E3 Enlist E3 - 11.4 57.0 79.3 79.3
16 NK Brand NK30-A9E3 Enlist E3 - 11.3 55.7 73.1 73.1

Top 5 by Yield: NK23-P1E3 (NK Brand) 87.5, 23A6 EXP (Attain) 85.7, V2157E (AgriGold) 84.5, G2425E3 (AgriGold) 82.9, G2265E3 (AgriGold) 80.8.