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 — Harm Smith (Forest, IN, 2025)
+
+- **Publisher:** ProHarvest Seeds (cross-vendor plot report)
+- **Crop:** Corn
+- **Year:** 2025
+- **Location:** Forest, IN · Clinton County
+- **Cooperator:** Harm Smith
+- **Company rep:** David Hopkins
+- **Planted:** 5/12/2025
+- **Harvested:** 10/23/2025
+- **Previous crop:** Soybeans
+- **Row width:** 30
+- **Population:** 32,600 seeds/acre
+- **Tillage:** Conventional
+- **Irrigation:** Non-Irrigated
+- **Source PDF:** https://proharvestseeds.com/wp-content/uploads/2025/10/Corn-Smith-Forest-IN.pdf
+
+---
+
+## Results (head-to-head)
+
+| Rank | Brand | Hybrid/Variety | Trait | Yield/Ac | % H2O | Test Wt | +/- Ave |
+|---|---|---|---|---|---|---|---|
+| 1 | Pioneer | P1170 | AM | 261.44 | 21.4 | None | 10.5 |
+| 2 | ProHarvest | 81P20 | PCE | 256.33 | 19.1 | None | 5.4 |
+| 3 | ProHarvest | 81P45 | TRERIB | 255.94 | 21.3 | None | 5 |
+| 4 | Channel | 213-23 | - | 254.68 | 18.6 | None | 3.8 |
+| 5 | Pioneer | P1383 | AM | 254.64 | 19.3 | None | 3.7 |
+| 6 | ProHarvest | 81P45 | TRERIB | 251.49 | 20.9 | None | 0.6 |
+| 7 | Channel | 213-23 | - | 247.76 | 19 | None | -3.1 |
+| 8 | ProHarvest | 81P45 | TRERIB | 247.11 | 21.1 | None | -3.8 |
+| 9 | Channel | 208-62 | VT2PRIB | 246.52 | 18.6 | None | -4.4 |
+| 10 | ProHarvest | 81P20 | PCE | 245.12 | 20.3 | None | -5.8 |
+| 11 | ProHarvest | 81P20 | PCE | 238.77 | 20.5 | None | -12.1 |