Oakes Irrigation Research
Site
Carrington Research Extension Center * North Dakota State University
P.O. Box 531, Oakes, ND 58474-0531, Voice: (701) 742-2189, FAX: (701)
742-2700, email: rgreenla@ndsuext.nodak.edu
SOYBEAN VARIETY PERFORMANCE TRIAL, 1999
Ted Helms, NDSU Department of Plant Sciences
Richard G Greenland, Leonard Besemann
Table 32. Results of the 1999 soybean performance trial.
Soybeans usually produce well in North Dakota. This replicated trial tested 20 soybean varieties. Most of the varieties are those Ted Helms is developing.
MATERIALS AND METHODS
| Soil: | Hecla sandy loam and Maddock sandy loam; pH=7.3; 2.3% organic matter; soil-P was high; soil-K was very high; soil-S was very low. |
| Previous crop: | 1998 - pumpkin and squash; 1997 - field corn; 1996 - pepper. |
| Seedbed preparation: | Disked on 27 October 1998. Buried drip tube was replaced which involved chisel plowing and several passes with a field cultivater from late April to May 20. Field cultivated twice on May 21 to incorporate herbicide and prepare seedbed. |
| Planting: | Planted on May 21 in 30-inch rows. |
| Plots: | Plots were 17 ft long by 10 ft wide. There were 4 reps. |
| Fertilizer: | On April 7, broadcast 15 lbs N/acre and 75 lbs P2O5/acre as 10-50-0, 18 lbs N/acre and 20 lbs S/acre as 21-0-0-24, and 99 lbs K20/acre as 0-0-60. |
| Irrigation: | Underground drip irrigation as needed. |
| Pest control: | Weeds were controlled by Sonalan (2 pt/acre on May 21, preplant incorporated), Dual (1.5 pt/acre on May 21), Pursuit + nonionic surfactant (1.44 oz/acre + 1 pt/50 gal on June 7), and hand weeding as needed. Sprayed with Benlate (1.5 lb/acre on July 13 and July 23) to prevent white mold. |
| Harvest: | Harvested on Oct 6 with a Hege plot combine. |
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Table 32. Results of the 1999 soybean performance trial at the Oakes Irrigation Research Site.
| Variety | Days to maturity | Yield | % moist. at harvest | Test weight | Lodging | Plant height |
| bu/acre† | % | lbs/bu | 1 to 5‡ | inches | ||
| TRAILL | 111 | 46.8 | 13.3 | 57.4 | 3.0 | 38.0 |
| ND96-1006 | 112 | 45.2 | 13.7 | 57.2 | 2.8 | 38.3 |
| ND96-8929 | 116 | 54.0 | 13.5 | 57.2 | 2.7 | 39.7 |
| ND96-7803 | 122 | 55.1 | 13.6 | 55.3 | 3.5 | 38.3 |
| ND95-931 | 122 | 59.2 | 13.8 | 56.8 | 2.3 | 45.0 |
| ND96-7718 | 123 | 57.5 | 13.5 | 57.5 | 3.5 | 38.7 |
| ND96-8483 | 123 | 51.8 | 13.3 | 56.6 | 3.0 | 39.0 |
| ND96-8994 | 124 | 57.2 | 13.6 | 56.0 | 2.7 | 43.0 |
| ND96-1770 | 124 | 50.9 | 13.4 | 57.4 | 3.3 | 40.3 |
| ND95-6296 | 125 | 54.3 | 14.1 | 57.0 | 2.7 | 38.3 |
| P. 9071 | 125 | 58.5 | 13.8 | 56.3 | 2.3 | 41.7 |
| ND96-7762 | 125 | 55.3 | 13.6 | 57.0 | 3.3 | 39.3 |
| ND95-958 | 125 | 61.8 | 13.9 | 56.7 | 2.2 | 44.7 |
| ND96-9188 | 125 | 51.5 | 13.3 | 56.6 | 3.2 | 38.3 |
| P. 9092 | 126 | 59.2 | 14.0 | 56.0 | 2.2 | 45.0 |
| COUNCIL | 126 | 58.9 | 13.6 | 56.5 | 3.3 | 43.0 |
| ND96-8811 | 127 | 52.3 | 13.8 | 57.0 | 2.3 | 41.0 |
| ND95-6339 | 128 | 57.4 | 13.8 | 56.6 | 3.3 | 42.7 |
| LAMBERT | 128 | 58.9 | 14.0 | 58.3 | 2.5 | 42.7 |
| ND96-1593 | 131 | 60.8 | 13.8 | 58.1 | 3.7 | 43.7 |
| Exp. Mean | 124 | 55.3 | 13.7 | 56.9 | 2.9 | 41.0 |
| LDS (0.05) | 3.8 | 6.6 | 0.4 | 1.1 | 0.9 | 3.4 |
| C. V. (%) | 2 | 7 | 2 | 1 | 19 | 5 |
| Probability | 0.0001 | 0.0002 | 0.009 | 0.0015 | 0.02 | 0.0001 |
†Yield adjusted to 13%
moisture.
‡Lodging is from 1 to 5: 1 is erect; 5 is flat on ground.
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Go to Oakes Irrigation Research Site Variety Performance Trials
Go to Oakes Irrigation Research Site 1999 annual report