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, 2024)
+
+- **Publisher:** ProHarvest Seeds (cross-vendor plot report)
+- **Crop:** Corn
+- **Year:** 2024
+- **Location:** Modesto, IL · Macoupin County
+- **Cooperator:** Clint Turner
+- **Company rep:** Rick Urish
+- **Planted:** 4/15/2024
+- **Harvested:** 9/11/2024
+- **Previous crop:** Soybeans
+- **Row width:** 30"
+- **Population:** 35,000 seeds/acre
+- **Tillage:** Min-Till
+- **Irrigation:** Non-Irrigated
+- **Fungicide:** Trivapro
+- **Source PDF:** https://proharvestseeds.com/wp-content/uploads/2024/11/Corn-Clint-Turner-Modesto-IL-62667.pdf
+
+---
+
+## Results (head-to-head)
+
+| Rank | Brand | Hybrid/Variety | Trait | Yield/Ac | % H2O | Test Wt | +/- Ave |
+|---|---|---|---|---|---|---|---|
+| 1 | ProHarvest | 81P20 | PCE | 267.58 | 20.1 | 60.0 | 19.5 |
+| 2 | ProHarvest | 80P75 | PCE | 256.96 | 18.2 | 60.0 | 8.9 |
+| 3 | ProHarvest | 83P66 | VT2P RIB | 253.85 | 24.2 | 60.0 | 5.8 |
+| 4 | ProHarvest | 8360 | VT2P RIB | 249.23 | 20.0 | 60.0 | 1.1 |
+| 5 | ProHarvest | 82P79 | VT2P RIB | 245.38 | 19.9 | 62.0 | -2.7 |
+| 6 | ProHarvest | 85P58 | SS RIB | 244.37 | 20.9 | 58.0 | -3.7 |
+| 7 | ProHarvest | 84P78 | TRE RIB | 243.71 | 25.2 | 60.0 | -4.4 |
+| 8 | ProHarvest | 84P30 | AA | 242.72 | 24.6 | 59.0 | -5.4 |
+| 9 | ProHarvest | 83P33 | VT2P RIB | 228.95 | 24.3 | 59.0 | -19.1 |