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 — Brian Egel (Nichols, IA, 2025)
+
+- **Publisher:** ProHarvest Seeds (cross-vendor plot report)
+- **Crop:** Corn
+- **Year:** 2025
+- **Location:** Nichols, IA · Muscatine County
+- **Cooperator:** Brian Egel
+- **Company rep:** Jake Ekstrand
+- **Planted:** 4/27/2025
+- **Harvested:** 10/2/2025
+- **Previous crop:** Soybeans
+- **Row width:** 30
+- **Population:** 34,000 seeds/acre
+- **Tillage:** Conventional
+- **Irrigation:** Non-Irrigated
+- **Source PDF:** https://proharvestseeds.com/wp-content/uploads/2025/10/Corn-Egel-Nichols-IA-min.pdf
+
+---
+
+## Results (head-to-head)
+
+| Rank | Brand | Hybrid/Variety | Trait | Yield/Ac | % H2O | Test Wt | +/- Ave |
+|---|---|---|---|---|---|---|---|
+| 1 | ProHarvest | 78P95 | PCE | 230.09 | 11.8 | 59 | 31.5 |
+| 2 | ProHarvest | 81P19 | VT4PRIB | 230.02 | 12 | 59 | 31.4 |
+| 3 | ProHarvest | 84P78 | TRERIB | 224.91 | 12.4 | 60 | 26.3 |
+| 4 | Cornelius | 7399 | PCE | 221.85 | 12.2 | 58 | 23.3 |
+| 5 | ProHarvest | 82P96 | PCE | 220.06 | 12.2 | 58 | 21.5 |
+| 6 | ProHarvest | 83P66 | VT2PRIB | 219.37 | 11.4 | 58 | 20.8 |
+| 7 | ProHarvest | 79P15 | V | 214.35 | 12.1 | 59 | 15.8 |
+| 8 | Cornelius | C7235 | PCE | 210.01 | 12.1 | 58 | 11.4 |
+| 9 | Cornelius | C7448 | PCE | 205.64 | 13.2 | 58 | 7.1 |
+| 10 | Cornelius | C7202 | SSP | 204.72 | 11 | 60 | 6.1 |
+| 11 | Brevant | B13C49 | PCE | 203.16 | 11 | 58 | 4.6 |
+| 12 | ProHarvest | 83P48 | SSPRO | 202.39 | 12.7 | 59 | 3.8 |
+| 13 | Cornelius | C7120 | - | 201.9 | 12.6 | 59 | 3.3 |
+| 14 | ProHarvest | 79P54 | SSPRO | 201.45 | 11.6 | 59 | 2.9 |
+| 15 | ProHarvest | 81P20 | PCE | 193.04 | 11.9 | 57 | -5.5 |
+| 16 | Cornelius | C7216 | VT4P | 192.35 | 15.1 | 59 | -6.2 |
+| 17 | Cornelius | C7021 | DP | 191.97 | 12 | 59 | -6.6 |
+| 18 | Cornelius | 7342 | SSP | 190.62 | 12.6 | 58 | -8 |
+| 19 | ProHarvest | 81P45 | TRERIB | 189.83 | 11.1 | 58 | -8.7 |
+| 20 | ProHarvest | 77P25 | VT4PRIB | 188.3 | 10.7 | 57 | -10.3 |
+| 21 | Cornelius | C7366 | DGDP | 187.69 | 12.1 | 58 | -10.9 |
+| 22 | ProHarvest | 85P58 | VT2PRIB | 187.53 | 12.8 | 60 | -11 |
+| 23 | Brevant | B12H48 | PCE | 169.56 | 11.3 | 57 | -29 |
+| 24 | Cornelius | C6847 | TRE | 167.93 | 12 | 58 | -30.6 |
+| 25 | Cornelius | C7373 | SSP | 164.54 | 12 | 58 | -34 |
+| 26 | ProHarvest | 86P55 | TRERIB | 149.62 | 14.2 | 56 | -49 |