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 — Tyler Muhlenkamp (Coldwater, OH, 2024)
+
+- **Publisher:** ProHarvest Seeds (cross-vendor plot report)
+- **Crop:** Corn
+- **Year:** 2024
+- **Location:** Coldwater, OH · Mercer County
+- **Cooperator:** Tyler Muhlenkamp
+- **Company rep:** Matthew Reichert
+- **Planted:** 5/20/2024
+- **Harvested:** 10/1/2024
+- **Population:** 36,000 seeds/acre
+- **Source PDF:** https://proharvestseeds.com/wp-content/uploads/2024/11/Corn-Tyller-Muhlenkamp-Coldwater-OH-45828.pdf
+
+---
+
+## Results (head-to-head)
+
+| Rank | Brand | Hybrid/Variety | Trait | Yield/Ac | % H2O | Test Wt | +/- Ave |
+|---|---|---|---|---|---|---|---|
+| 1 | ProHarvest | 81P65 | V | 183.6 | - | - | 17.6 |
+| 2 | ProHarvest | 80P75 | PCE | 173.5 | - | - | 7.5 |
+| 3 | ProHarvest | 78P23 | PCE | 169.7 | - | - | 3.7 |
+| 4 | ProHarvest | 77P60 | SS RIB | 164.1 | - | - | -1.9 |
+| 5 | ProHarvest | 79P87 | SS RIB | 154.0 | - | - | -12.0 |
+| 6 | ProHarvest | 77P85 | SS RIB | 150.9 | - | - | -15.1 |