By: Bailey Tangen, Extension educator, and Etienne Sutton, University of Missouri How much biomass are your cover crops producing, and what does that mean for nutrient retention and soil health? Through the Great Lakes Cover Crop Project, Minnesota farmers are helping to answer that question using a simple protocol based on photos and height measurements. Results will help build practical, local data to guide better cover crop management and nutrient decisions. In this blog post, explore last year’s data from 133 Minnesota fields and how you can participate in 2026. The project and new method for farmers As part of the Great Lakes Cover Crop Project , farmers participate as community scientists by collecting cover crop measurements in their fields. Measuring cover crop growth, or biomass, has historically involved clipping plants within a defined area (e.g., using a quadrat) and then drying and weighing them, which can be time consuming. To simplify this process, we developed a new pro...
Strategic Farming: Let's talk crops! session talks whether foliar corn diseases will continue to threaten MN yields
By Angie Peltier and Ryan Miller, UMN Extension educators, and Dean Malvick, UMN Extension corn and soybean plant pathologist Curvularia leaf spot in corn. Photo: Dean Malvick March 4, 2026’s Strategic Farming: Let’s Talk Crops session discussed whether foliar corn diseases are likely to threaten Minnesota yields in 2026. This webinar series runs through March and registrations are still being accepted: https://z.umn.edu/SF2026 To watch this episode visit: https://z.umn.edu/SF2026 http://z.umn.edu/StrategicFarmingRecordings . There is a long list of leaf diseases that can negatively impact a corn crop’s yield potential. The diseases that have been of most recent concern in Minnesota include tar spot, southern rust, Northern corn leaf blight and Goss’s wilt and blight, the diseases that were of focus during this session. Tar spot Three things must be present for disease to occur, a virulent strain of a pathogen, a disease-susceptible hybrid and environmental conditions that ...