Three sites will be selected across eastern South Dakota to measure soybean yield response, carbon storage, pest control and economic benefits of various farming systems in a five-year study. Farming system combinations will compare tillage vs. no-till systems, along with residue removal vs. residue retained systems and all combinations of these two main effects. Soil testing will measure long-term changes in soil carbon storage and rates of nutrient depletion in various system combinations. Grain yields will demonstrate the effectiveness of maintaining economic yields despite some aspects of the main treatments which may reduce yields at the expense of increasing soil carbon.
The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.