Add ProHarvest Seeds: 119 varieties + 161 cross-vendor plot reports (#16)

Co-authored-by: claude <claude@jpaul.io> Co-committed-by: claude <claude@jpaul.io>
2026-06-04 21:05:30 -04:00
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+# Corn yield trial — Clint Turner (Modesto, IL, 2025)
+
+- **Publisher:** ProHarvest Seeds (cross-vendor plot report)
+- **Crop:** Corn
+- **Year:** 2025
+- **Location:** Modesto, IL · Macoupin County
+- **Cooperator:** Clint Turner
+- **Company rep:** Rick Urish
+- **Planted:** 5/13/2025
+- **Harvested:** 10/13/2025
+- **Previous crop:** Soybeans
+- **Row width:** 30"
+- **Population:** 35,000 seeds/acre
+- **Tillage:** Conventional
+- **Irrigation:** Non irrigated
+- **Fungicide:** Trivapro
+- **Source PDF:** https://proharvestseeds.com/wp-content/uploads/2025/10/Corn-Turner-Modesto-IL.pdf
+
+---
+
+## Results (head-to-head)
+
+| Rank | Brand | Hybrid/Variety | Trait | Yield/Ac | % H2O | Test Wt | +/- Ave |
+|---|---|---|---|---|---|---|---|
+| 1 | ProHarvest | 83P66 | VT2PRIB | 274.9 | 14.0 | 62.0 | 15.2 |
+| 2 | ProHarvest | 80P75 | PCE | 62.0 | 15.4 | - | 274.6 |
+| 3 | ProHarvest | 84P78 | TreRIB | 274.1 | 13.8 | 63.0 | 14.5 |
+| 4 | ProHarvest | 81P45 | TreRIB | 267.3 | 14.2 | 64.0 | 7.6 |
+| 5 | ProHarvest | 82P96 | PCE | 256.8 | 14.9 | 61.0 | -2.9 |
+| 6 | ProHarvest | 84P41 | PCE | 250.8 | 13.6 | 61.0 | -8.8 |
+| 7 | ProHarvest | 86P55 | TreRIB | 243.5 | 14.2 | 63.0 | -16.2 |
+| 8 | ProHarvest | 81P20 | PCE | 235.4 | 15.1 | 54.0 | -24.3 |