# Corn yield trial — Delturn (Monticello, IA, 2025)

- **Publisher:** ProHarvest Seeds (cross-vendor plot report)
- **Crop:** Corn
- **Year:** 2025
- **Location:** Monticello, IA · Jones County
- **Cooperator:** Delturn
- **Company rep:** Ryan Frederich
- **Planted:** 5/6/2025
- **Harvested:** 10/11/2025
- **Row width:** 30
- **Population:** 36,000 seeds/acre
- **Tillage:** Conventional
- **Irrigation:** Non-Irrigated
- **Source PDF:** https://proharvestseeds.com/wp-content/uploads/2025/10/Corn-Delturn-Monticello-IA.pdf

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## Results (head-to-head)

| Rank | Brand | Hybrid/Variety | Trait | Yield/Ac | % H2O | Test Wt | +/- Ave |
|---|---|---|---|---|---|---|---|
| 1 | ProHarvest | 83P48 | SSPRO | 299 | 16.6 | 60.6 | 23.6 |
| 2 | ProHarvest | 81P19 | VT4PRIB | 296.48 | 17.2 | 57.6 | 21.1 |
| 3 | DEKALB | DKC114-42RIB | - | 289.88 | 17.8 | 57.9 | 14.5 |
| 4 | ProHarvest | 85P58 | VT2PRIB | 288.75 | 16 | 60.8 | 13.4 |
| 5 | ProHarvest | 80P75 | CONV | 288.46 | 15.4 | 57.2 | 13.1 |
| 6 | Wyffels | W7485 | - | 287.24 | 16.5 | 57.5 | 11.9 |
| 7 | DEKALB | DKC112-29RIB | - | 283.21 | 17.5 | 57.2 | 7.9 |
| 8 | ProHarvest | 83P66 | - | 282.35 | 17 | 57.4 | 7 |
| 9 | ProHarvest | 80P75 | PCE | 281.84 | 16.2 | 56.4 | 6.5 |
| 10 | Pioneer | P0859 | AM | 281.32 | 14.8 | 58.5 | 6 |
| 11 | ProHarvest | 85P13 | CONV | 281.01 | 18.1 | 56.8 | 5.7 |
| 12 | Wyffels | W8007VT4 | - | 276.66 | 16.4 | 57.6 | 1.3 |
| 13 | ProHarvest | 79P54 | SSPRO | 276.41 | 15 | 58 | 1.1 |
| 14 | ProHarvest | 81P45 | TRERIB | 276.31 | 17 | 56.7 | 1 |
| 15 | ProHarvest | 82P96 | PCE | 275.77 | 17.6 | 56.7 | 0.4 |
| 16 | ProHarvest | 78P95 | CONV | 275.38 | 14.5 | 60.8 | 0 |
| 17 | Wyffels | W5129 | - | 274.81 | 14.5 | 58.4 | -0.5 |
| 18 | ProHarvest | 86P55 | TRERIB | 274.07 | 18.8 | 56.4 | -1.3 |
| 19 | DEKALB | DKC108-64RIB | - | 273.88 | 14 | 58.3 | -1.5 |
| 20 | ProHarvest | 76P42 | CONV | 273.55 | 14.5 | 58.9 | -1.8 |
| 21 | ProHarvest | 83P66 | VT2PRIB | 273.52 | 17.5 | 57.1 | -1.8 |
| 22 | ProHarvest | 78P95 | PCE | 272.66 | 15.5 | 59.7 | -2.7 |
| 23 | ProHarvest | 81P20 | CONV | 269.9 | 17.9 | 56.5 | -5.5 |
| 24 | ProHarvest | 84P78 | - | 269.69 | 18.2 | 56.2 | -5.7 |
| 25 | ProHarvest | 84P41 | PCE | 267.41 | 17.3 | 57.8 | -7.9 |
| 26 | Wyffels | W4487 | VT4P | 264.17 | 14 | 59.1 | -11.2 |
| 27 | Wyffels | W5684 | - | 262.4 | 15 | 58.5 | -13 |
| 28 | ProHarvest | 81P20 | PCE | 259.73 | 17.1 | 56.2 | -15.6 |
| 29 | ProHarvest | 75P85 | DGVT2PRIB | 259.58 | 13.6 | 58 | -15.8 |
| 30 | ProHarvest | 74P10 | PCE | 251.11 | 13.4 | 58.8 | -24.2 |
| 31 | Wyffels | W3654 | PC | 249.46 | 13.8 | 58.3 | -25.9 |