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

3.0 KiB

Soybean yield trial — Princeton, IL, 2024

  • Source: AgriGold plot report (cross-vendor head-to-head)
  • Vendor: AgReliant Genetics / AgriGold
  • Crop: Soybean
  • State: IL
  • County: Bureau
  • City: Princeton
  • Year: 2024
  • Plot ID: 144566
  • Cooperator: Ag View FS, Inc.
  • Plot average: 79.95 BU/Ac
  • Planted: 2024-05-01
  • Harvested: 2024-10-01
  • Population: 140,000 seeds/acre
  • Row width: 30.0"
  • # Rows: 4
  • Soil type: Silt Loam
  • Tillage: Conventional
  • Previous crop: Corn
  • Irrigation: None
  • URL: https://www.agrigold.com/soybeans/performance/soybean-yield-results/144566

Results (by rank)

Rank Brand Product Trait Ck H20 Test Wt. Yield Adj Yield
1 Brevant Seeds B324EE Enlist E3 - 10.6 - 84.2 84.2
2 NK Brand NK29-Q3XF XTENDFlex - 10.6 - 83.8 83.8
3 Asgrow AG33XF3 XTENDFlex - 10.7 - 83.1 83.1
4 AgriGold G3051E3 Enlist E3 - 10.9 - 82.6 82.6
5 AgriGold G2574XF XTENDFlex - 10.6 - 82.3 82.3
6 FS Seeds HS24F40 XTENDFlex - 11.0 - 82.1 82.1
7 Brevant Seeds B294EE Enlist E3 - 10.5 - 81.6 81.6
8 Brevant Seeds B263EE Enlist E3 - 10.9 - 81.2 81.2
8 FS Seeds HS25E30 Enlist E3 - 10.8 - 81.2 81.2
10 AgriGold G2601E3 Enlist E3 - 10.6 - 81.0 81.0
11 Brevant Seeds B252EE Enlist E3 - 10.6 - 80.9 80.9
12 NK Brand NK26-M6E3 Enlist E3 - 10.3 - 80.7 80.7
12 Asgrow AG27XF3 XTENDFlex - 10.6 - 80.7 80.7
14 Asgrow AG24XF1 XTENDFlex - 11.0 - 80.6 80.6
14 NK Brand NK30-U4XF XTENDFlex - 10.5 - 80.6 80.6
16 FS Seeds HS31E20 Enlist E3 - 10.8 - 80.3 80.3
17 FS Seeds HS28F30 XTENDFlex - 10.8 - 79.9 79.9
18 AgriGold G3279E3 Enlist E3 - 10.5 - 79.7 79.7
19 AgriGold G3404E3 Enlist E3 - 10.6 - 79.1 79.1
20 NK Brand NK32-C5XF XTENDFlex - 10.6 - 79.0 79.0
21 Asgrow AG26XF4 XTENDFlex - 10.7 - 78.9 78.9
22 NK Brand NK27-W8XF XTENDFlex - 10.6 - 78.5 78.5
23 AgriGold G3144XF XTENDFlex - 10.6 - 78.2 78.2
24 Asgrow AG30XF4 XTENDFlex - 10.7 - 78.0 78.0
25 Asgrow AG25XF5 XTENDFlex - 10.8 - 77.8 77.8
26 NK Brand NK30-A9E3 Enlist E3 - 10.6 - 77.7 77.7
27 FS Seeds HS32F10 XTENDFlex - 10.6 - 77.6 77.6
28 FS Seeds HS29E40 Enlist E3 - 10.7 - 76.8 76.8
29 FS Seeds HS30F40 XTENDFlex - 10.7 - 76.2 76.2
30 NK Brand NK27-J5E3 Enlist E3 - 10.9 - 74.1 74.1

Top 5 by Yield: B324EE (Brevant Seeds) 84.2, NK29-Q3XF (NK Brand) 83.8, AG33XF3 (Asgrow) 83.1, G3051E3 (AgriGold) 82.6, G2574XF (AgriGold) 82.3.