| Oakes Irrigation Research Site | ||||||||||||||
| Carrington Research Extension Center * North Dakota State University | ||||||||||||||
| P.O. Box 531, Oakes, ND 58474-0531, Phone: (701) 742-2744, FAX: (701) 742-2700, E-mail: | Kelly.c.Cooper@ndsu.edu | |||||||||||||
| Soybean Variety Trial | ||||||||||||||
| K. Cooper, L. Besemann and H. Eslinger | ||||||||||||||
| Three soybean variety trials were conducted at the Oakes Irrigation Research Site; a Roundup Ready@ trial, a Liberty Link trial and Conventional Soybean. Results for the Roundup Ready trial are listed in Table 1. Results for the Liberty Link trial are listed in Table 2. Results for the Conventional trial are listed in Table 3. There were 37 varieties in the Roundup Ready trial, 9 varieties in the Liberty Link trial and 12 varieties in the Conventional trial. | ||||||||||||||
| MATERIALS AND METHODS | ||||||||||||||
| Soil: | Embden loam, Spottswood loam, Lindass silty clay loam, Overly loam; pH = 6.8; 4.3% organic matter; soil N was 41 lbs/acre; soil P was high; soil K was very high; soil S was low. | |||||||||||||
| Previous crop: | 2016 – corn. | |||||||||||||
| Seedbed preparation: | Strip-till with an Orthman strip-till machine. | |||||||||||||
| Planting: | Planted May 19 in 30-inch rows. | |||||||||||||
| Plots: | Plots were 25 ft long by 5 ft (2 rows) wide. The study had four replications. | |||||||||||||
| Fertilizer: | Broadcast 21 lbs N/acre, 40 lbs P2O5/acre, 50 lbs K2O/acre and 15 lbs S/acre as 10 18 23-7 April 4. | |||||||||||||
| Irrigation: | Overhead sprinkler irrigation as needed. | |||||||||||||
| Pest control: | Weed control: Liberty Link, Roundup Ready®, and conventional soybeans received Authority (19 oz/acre) + Roundup (32 oz/acre) May 7, Select (16 oz/acre) + NIS (1 pt/100 gal) + Interlock (4 oz/acre) July 7. Disease control: Endura (5.5 oz/acre) July 20. | |||||||||||||
| Harvest: | October 12 and October 13 with a plot combine. | |||||||||||||
| RESULTS | ||||||||||||||
| Yield ranged from 61.7 bu/acre to 76.5 bu/acre and averaged 70.2 bu/acre in the Roundup Ready trial. Yield ranged from 64.1 bu/acre to 77.4 bu/acre and averaged 70.4 bu/acre in the Liberty Link trial. Yield ranged from 46.7 bu/acre to 86.7 bu/acre and averaged 64.6 bu/acre in the conventional trial. | ||||||||||||||
| Table 2. Soybean variety trial (Liberty Link) at the Oakes Irrigation Research Site 2017. | ||||||||||||||
| Mat | Days to | Plant | Seeds/ | Seed | Test | Seed Yield | ||||||||
| Brand | Variety | Group1 | PM | Lodge2 | Pound | Oil | Protein | Wt | 2017 | 2-yr. | 3-yr. Avg. |
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| 0 to 9 | % | % | lb/bu | --------bu/ac-------- | ||||||||||
| NuTech | 2086L | 0.8 | 124.0 | 2.0 | 2431 | 17.1 | 36.6 | 57.8 | 64.1 | 56.2 | 62.0 | |||
| NuTech | 3103L | 1.0 | 125.0 | 7.3 | 2334 | 18.0 | 36.0 | 57.2 | 66.9 | -- | -- | |||
| NuTech | 3115L | 1.1 | 125.3 | 8.0 | 2035 | 17.3 | 36.1 | 58.7 | 75.1 | 68.4 | -- | |||
| Credenz | CZ0448 LL | 0.4 | 120.5 | 5.8 | 2190 | 18.5 | 35.3 | 56.6 | 64.6 | -- | -- | |||
| Credenz | CZ 0525 LL | 0.5 | 122.5 | 6.5 | 2236 | 17.6 | 36.0 | 58.1 | 69.4 | 63.5 | 67.17 | |||
| Credenz | CZ 0601 LL | 0.6 | 122.8 | 5.0 | 2152 | 17.0 | 34.4 | 59.7 | 69.8 | 61.3 | -- | |||
| Credenz | CZ 1028 LL | 1.0 | 124.5 | 4.0 | 2205 | 16.6 | 36.6 | 58.2 | 75.0 | -- | -- | |||
| Credenz | CZ 1201 LL | 1.2 | 126.0 | 8.8 | 2048 | 17.5 | 35.7 | 58.1 | 71.1 | 63.7 | -- | |||
| Credenz | CZ 1332 LL | 1.3 | 125.8 | 4.8 | 2095 | 16.5 | 36.4 | 58.3 | 77.4 | -- | -- | |||
| Mean | 124.0 | 5.8 | 2192 | 17.3 | 35.9 | 58.1 | 70.4 | -- | -- | |||||
| C.V (%) | 0.7 | 29.6 | 2.5 | 0.9 | 0.8 | 2.2 | 7.4 | -- | -- | |||||
| LSD 0.10 | 1.0 | 2.07 | 66 | 0.2 | 0.3 | 1.6 | 6.3 | -- | -- | |||||
| LSD 0.05 | 1.2 | 2.5 | 80 | 0.2 | 0.4 | 1.9 | 7.6 | -- | -- | |||||
| Planting date = May 19; Harvest date = October 13; Previous crop = Field corn | ||||||||||||||
| Height notes were not submitted because a high wind and rain event mid-July resulted in severe lodging. | ||||||||||||||
| 1Maturity group based on data provided by seed company. | ||||||||||||||
| 2Plant lodge: 0 = no lodging; 9 = plants lying flat. | ||||||||||||||
| Table 1. Roundup Ready@ soybean | Table 2. Liberty Link soybean | Table 3. Conventional soybean | ||||||||||||
| Oakes Irrigation Research Site | ||||||||||||||
| Variety trials | Crop index | Home page | Report 2017 | |||||||||||