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

1.8 KiB

Soybean yield trial — Princeton, IL, 2025

  • Source: AgriGold plot report (cross-vendor head-to-head)
  • Vendor: AgReliant Genetics / AgriGold
  • Crop: Soybean
  • State: IL
  • County: Bureau
  • City: Princeton
  • Year: 2025
  • Plot ID: 145465
  • Cooperator: Alan Madison
  • Plot average: 85.48 BU/Ac
  • Planted: 2025-04-24
  • Harvested: 2025-09-28
  • Population: 110,000 seeds/acre
  • Row width: 30.0"
  • # Rows: 8
  • Soil type: Silt Loam
  • Tillage: Strip Till
  • Previous crop: Corn
  • Irrigation: None
  • URL: https://www.agrigold.com/soybeans/performance/soybean-yield-results/145465

Results (by rank)

Rank Brand Product Trait Ck H20 Test Wt. Yield Adj Yield
11 AgriGold G2601E3 Enlist E3 - 10.9 57.7 80.9 80.9
9 FS Seeds HS26E20 Enlist E3 - 10.4 60.6 84.9 84.9
6 FS Seeds HS28E10 Enlist E3 - 10.4 59.0 87.1 87.1
4 Pioneer P28Z30E Enlist E3 - 10.2 59.3 89.4 89.4
7 Pioneer P28Z89E Enlist E3 - 10.3 58.9 86.6 86.6
2 Pioneer P29Z61E Enlist E3 - 10.4 58.3 90.3 90.3
8 AgriGold G3051E3 Enlist E3 - 10.6 58.2 85.8 85.8
3 Pioneer P31Z03E Enlist E3 - 10.7 57.7 90.2 90.2
10 FS Seeds HS31E20 Enlist E3 - 10.3 58.0 82.5 82.5
5 Pioneer P31Z32E Enlist E3 - 10.2 59.9 87.3 87.3
1 Pioneer P33Z17E Enlist E3 - 10.2 59.4 92.2 92.2
13 FS Seeds HS34E40 Enlist E3 - 10.4 61.4 74.8 74.8
12 AgriGold G3425E3 Enlist E3 - 10.1 59.2 79.3 79.3

Top 5 by Yield: P33Z17E (Pioneer) 92.2, P29Z61E (Pioneer) 90.3, P31Z03E (Pioneer) 90.2, P28Z30E (Pioneer) 89.4, P31Z32E (Pioneer) 87.3.