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 — Milledgeille, IL, 2025

  • Source: AgriGold plot report (cross-vendor head-to-head)
  • Vendor: AgReliant Genetics / AgriGold
  • Crop: Soybean
  • State: IL
  • County: Carroll
  • City: Milledgeille
  • Year: 2025
  • Plot ID: 147839
  • Cooperator: Ag View FS, Inc.
  • Plot average: 94.01 BU/Ac
  • Planted: 2025-05-08
  • Harvested: 2025-10-26
  • Population: 150,000 seeds/acre
  • Row width: 15.0"
  • # Rows: 4
  • Soil type: Silt Loam
  • Tillage: Conventional
  • Previous crop: Corn
  • Irrigation: None
  • URL: https://www.agrigold.com/soybeans/performance/soybean-yield-results/147839

Results (by rank)

Rank Brand Product Trait Ck H20 Test Wt. Yield Adj Yield
1 FS Seeds HS28E50 Enlist E3 - 11.5 - 101.5 101.5
2 Asgrow AG22XF6 XTENDFlex - 11.8 - 100.5 100.5
2 NK Brand NK28-G7E3S Enlist E3 - 11.7 - 100.5 100.5
4 NK Brand NK26-M6E3 Enlist E3 - 11.7 - 99.8 99.8
5 Brevant Seeds B315EE Enlist E3 - 11.5 - 99.6 99.6
6 AgriGold G2574XF XTENDFlex - 11.8 - 99.3 99.3
7 AgriGold G3255E3 Enlist E3 - 11.8 - 98.0 98.0
8 FS Seeds HS26E50 Enlist E3 - 11.6 - 97.8 97.8
9 AgriGold G3051E3 Enlist E3 - 11.8 - 97.4 97.4
10 Brevant Seeds B275EE Enlist E3 - 11.8 - 96.4 96.4
11 Brevant Seeds B294EE Enlist E3 - 11.7 - 95.4 95.4
11 FS Seeds HS25E30 Enlist E3 - 11.7 - 95.4 95.4
13 FS Seeds HS26F50 XTENDFlex - 11.7 - 95.1 95.1
14 Asgrow AG34XF6 XTENDFlex - 11.6 - 94.9 94.9
15 AgriGold G2601E3 Enlist E3 - 11.8 - 94.1 94.1
16 NK Brand NK29-Q3XF XTENDFlex - 11.9 - 94.0 94.0
17 Brevant Seeds B324EE Enlist E3 - 11.8 - 93.2 93.2
18 AgriGold G2425E3 - - 12.0 - 92.5 92.5
19 NK Brand NK30-A9E3 Enlist E3 - 11.7 - 92.3 92.3
20 FS Seeds HS29F50 XTENDFlex - 11.6 - 92.1 92.1
21 FS Seeds HS32F50 Enlist E3 - 11.8 - 91.8 91.8
22 NK Brand NK24-U5XF XTENDFlex - 11.8 - 90.9 90.9
23 Asgrow AG30XF4 XTENDFlex - 11.9 - 90.5 90.5
23 AgriGold G2755XF XTENDFlex - 11.6 - 90.5 90.5
25 Asgrow AG33XF3 XTENDFlex - 11.7 - 89.8 89.8
26 NK Brand NK26-Z1XF XTENDFlex - 11.8 - 89.6 89.6
27 FS Seeds HS33E50 Enlist E3 - 11.8 - 89.0 89.0
28 Asgrow AG26XF4 XTENDFlex - 11.8 - 87.6 87.6
29 NK Brand NK32-P2XF XTENDFlex - 11.7 - 87.1 87.1
30 Asgrow AG32XF6 XTENDFlex - 11.8 - 83.8 83.8

Top 5 by Yield: HS28E50 (FS Seeds) 101.5, AG22XF6 (Asgrow) 100.5, NK28-G7E3S (NK Brand) 100.5, NK26-M6E3 (NK Brand) 99.8, B315EE (Brevant Seeds) 99.6.