1. Study Soybean seeding rates and cost-effective seedling populations for South Dakota;
2. Determining the economic feasibility of double cropping soybeans into oat stubble;
3. Developing the cover crop technologies approach for use in soybean-corn rotations;
4. Assessing the impact of weeds and herbicide timing on soybean yields and germplasm;
5. Determining yield limiting factors in South Dakota soybean fields;
6. Assessing energy and carbon budgets;
7. Assessing the impact of climatic variability on planting/replanting decisions; and
8. Determining the yield stability of varieties to various field environments.