In recent years, an increasing number of questions have come to the Department of Agronomy dealing with nodulation problems in soybeans. Usually the problems are on land that had either not been in soybeans before or had been out of soybean production for 10 years or more due to the Conservation Reserve Program (CRP). In almost every case, the soybean seed had been inoculated according to standard procedures or based on seed company or inoculant supplier recommendations. Often field or environmental conditions (e.g. compaction, tillage, soil moisture) seemed to influence the degree of nodulation, but no systematic pattern was evident. The objectives of this study is to evaluate existing...
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.