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

2.2 KiB

Soybean yield trial — Dwight, IL, 2024

  • Source: AgriGold plot report (cross-vendor head-to-head)
  • Vendor: AgReliant Genetics / AgriGold
  • Crop: Soybean
  • State: IL
  • County: Livingston
  • City: Dwight
  • Year: 2024
  • Plot ID: 144454
  • Cooperator: Quinn Trewartha
  • Plot average: 70.19 BU/Ac
  • Planted: 2024-05-23
  • Harvested: 2024-10-03
  • Population: 140,000 seeds/acre
  • Row width: 15.0"
  • # Rows: 6
  • Soil type: Silt Loam
  • Tillage: Conventional
  • Previous crop: Corn
  • Irrigation: None
  • URL: https://www.agrigold.com/soybeans/performance/soybean-yield-results/144454

Results (by rank)

Rank Brand Product Trait Ck H20 Test Wt. Yield Adj Yield
1 Dyna Gro S25EN74 Enlist E3 - 12.8 - 85.4 85.4
5 Brevant Seeds B263EE Enlist E3 - 12.4 - 72.1 72.1
12 Xitavo XO2832E Enlist E3 - 12.3 - 67.9 67.9
10 AgriGold G2893E3 Enlist E3 - 12.0 - 68.5 68.5
11 Xitavo XO2865E Enlist E3 - 11.5 - 68.0 68.0
4 Dyna Gro S29EN62 Enlist E3 - 11.5 - 72.3 72.3
9 Brevant Seeds B294EE Enlist E3 - 11.1 - 68.8 68.8
14 Dyna Gro S29ES45 Enlist E3 - 11.1 - 67.6 67.6
3 Xitavo XO3014E Enlist E3 - 11.0 - 75.6 75.6
8 Dyna Gro S31EN91 Enlist E3 - 11.0 - 69.0 69.0
16 Xitavo XO3105E Enlist E3 - 10.7 - 66.1 66.1
6 Dyna Gro S31EN14 Enlist E3 - 10.8 - 71.0 71.0
19 Brevant Seeds B324EE Enlist E3 - 10.8 - 63.8 63.8
12 Xitavo XO3224E Enlist E3 - 10.9 - 67.9 67.9
7 Dyna Gro S33EN42 Enlist E3 - 10.9 - 69.4 69.4
17 AgriGold G3404E3 Enlist E3 - 10.9 - 65.7 65.7
15 Brevant Seeds B344EE Enlist E3 - 11.6 - 67.5 67.5
18 Dyna Gro S35ES82 Enlist/STS - 11.9 - 64.7 64.7
2 Dyna Gro S38EN75 Enlist E3 - 11.9 - 82.4 82.4

Top 5 by Yield: S25EN74 (Dyna Gro) 85.4, S38EN75 (Dyna Gro) 82.4, XO3014E (Xitavo) 75.6, S29EN62 (Dyna Gro) 72.3, B263EE (Brevant Seeds) 72.1.