| 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: | Blaine.Schatz@ndsu.edu | ||||||||||
| Leonard.Besemann@ndsu.edu | |||||||||||
| Soybean Variety Trial | |||||||||||
| L. Besemann and H. Eslinger | |||||||||||
| Two soybean variety trials were conducted at the Oakes Irrigation Research Site, a non‑GMO (conventional trial) and a Roundup Ready® trial. Results for the conventional trial are listed in Table 1 and results for the Roundup Ready trial are listed in Table 2. | |||||||||||
| MATERIALS AND METHODS | |||||||||||
| Soil: | Egeland loam and Maddock sandy loam; soil N 42 lbs/acre. | ||||||||||
| Previous crop: | 2012 – wheat. | ||||||||||
| Seedbed preparation: | Spring conventional tillage. | ||||||||||
| Planting: | Planted May 28 in 30-inch rows. | ||||||||||
| Plots: | Plots were 17 ft long by 5 ft (2 rows) wide. The study had four replications. | ||||||||||
| Fertilizer: | Broadcast 34 lbs N/acre, 81 lbs P2O5/acre, 103 lbs K2O/acre and 19 lbs S/acre as 8‑20-26-5 May 1. | ||||||||||
| Irrigation: | Overhead sprinkler irrigation as needed. | ||||||||||
| Pest control: | Weed control: | ||||||||||
| Roundup Ready and conventional: Trust (1 pt/acre) May 28. | |||||||||||
| Conventional: Basagran (1.5 pt/acre) + COC (1.25% v/v) June 26, Raptor (4 oz/acre) + NIS (0.25 % v/v) | |||||||||||
| + AMS (1.5 lb/10 gal) July 5. | |||||||||||
| Roundup Ready: Roundup Power Max (30 oz/acre) + AMS (1 lb/10 gal) June 24 and (40 oz/acre) + AMS | |||||||||||
| (1 lb/10 gal) July 16. | |||||||||||
| Disease control: Proline (5 oz/acre) July 18, July 24 and August 1. | |||||||||||
| Insect control: Kendo (3˝ oz/acre) July 24. | |||||||||||
| Harvest: | October 22 with a plot combine. | ||||||||||
| RESULTS | |||||||||||
| Yields in the Conventional trial averaged 57.2 bu/acre and the Roundup Ready trial averaged 73.8 bu/acre. | |||||||||||
| Table 1. Soybean variety trial (conventional) at the Oakes Irrigation Research Site in 2013. | |||||||||||
| Seed Yield | |||||||||||
| Mat. | JDAY | Plant | Seed | Seed | Test | 2-yr. | 3-yr. | ||||
| Brand | Variety | Group1 | of PM2 | Ht | Lodge | Oil | Protein | Wt | 2013 | Avg. | Avg. |
| inch | 0 to 9 | % | % | lb/bu | |||||||
| Richland IFC | MK0508 | 0.8 | 268.8 | 28.8 | 3.0 | 17.2 | 36.2 | 58.6 | 50.1 | 52.5 | 45.9 |
| Richland IFC | MK831 | 0.8 | 267.0 | 32.5 | 1.8 | 17.3 | 36.9 | 58.9 | 59.8 | 60.1 | 57.5 |
| Richland IFC | MK850 | 0.8 | 272.5 | 31.5 | 1.8 | 18.6 | 36.5 | 57.7 | 44.1 | -- | -- |
| Richland IFC | MK1016 | 1.0 | 273.5 | 36.5 | 2.5 | 16.5 | 38.1 | 59.0 | 39.3 | 49.2 | 52.0 |
| Richland IFC | MK9101 | 1.1 | 274.0 | 36.8 | 2.3 | 18.9 | 36.3 | 57.0 | 62.2 | -- | -- |
| Richland IFC | Challenger | 1.3 | 282.0 | 40.5 | 3.0 | 17.5 | 38.8 | 57.6 | 63.7 | 60.6 | -- |
| SK Food | SK 0786 | 0.7 | 272.0 | 34.3 | 3.5 | 17.4 | 39.1 | 56.5 | 57.7 | 58.8 | -- |
| SK Food | SK095 | 0.9 | 267.0 | 36.0 | 2.0 | 16.4 | 38.1 | 58.9 | 51.8 | 51.7 | -- |
| SK Food | SK 0635 | 0.6 | 270.8 | 28.5 | 3.3 | 19.6 | 34.2 | 56.3 | 67.7 | -- | -- |
| Thunder | 5210NLL3 | 1.0 | 274.3 | 41.3 | 0.8 | 18.5 | 35.3 | 57.5 | 68.6 | -- | -- |
| Thunder | 5411LL3 | 1.1 | 275.0 | 39.5 | 1.8 | 18.5 | 35.8 | 57.2 | 64.2 | -- | -- |
| MEAN | 272.4 | 35.1 | 2.3 | 17.8 | 36.8 | 57.7 | 57.2 | -- | -- | ||
| C.V. (%) | 0.4 | 5.0 | 49.2 | 1.3 | 0.8 | 0.7 | 7.8 | -- | -- | ||
| LSD 0.10 | 1.2 | 2.1 | 1.4 | 0.3 | 0.4 | 0.5 | 5.4 | -- | -- | ||
| LSD 0.05 | 1.5 | 2.5 | NS | 0.3 | 0.4 | 0.6 | 6.5 | -- | -- | ||
| Planting Date = May 28; Harvest Date = October 22; Previous Crop = Spring Wheat | |||||||||||
| 1 Maturity group based on data provided by seed company. | |||||||||||
| 2 Julian Day of PM: average of 272 = September 29. | |||||||||||
| 3 Soybean varieties 'Thunder 5210NLL' and 'Thunder 5411LL' are Liberty Link type varieties. | |||||||||||
| Oakes Irrigation Research Site | |||||||||||
| Variety trials | Crop index | Home page | Report 2013 | ||||||||
| Other soybean Studies 2013 | |||||||||||
| Table 2. Soybean variety trial (roundup ready) | |||||||||||
| Soybean stoller study | |||||||||||