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1. Evaluating the Trade-offs of Cover Crops in Dryland Wheat Systems of the Colorado PlateauOn the semi-arid Colorado Plateau, dryland farmers are challenged by severely degraded soils and low and increasingly unreliable precipitation. Cover crops have been shown to improve soil fertility and mitigate soil erosion in many regions, but are also associated with use of limited soil moisture, a cost that could mean decreased cash crop productivity for farmers. Most literature on cover crops comes from relatively humid climates, where crop yield penalties due to cover crops may be less pronounced.... L. Eash, A. Berrada, K. Russell, S. Fonte |
2. Experiences in the Canadian Prairies with Enhanced Efficiency N Fertilizers for Winter and Spring Wheat Production SystemsThis presentation summarizes several studies all designed to address knowledge gaps around enhanced efficiency urea fertilizer (EEF) efficacy for nitrogen (N) management in western Canadian winter and spring wheat production systems. Polymer-coated urea was first studied to determine how handling effects can alter the coating integrity of environmentally smart nitrogen (ESN®). While N release rates increased from retail or farm-handling such as transferring... B. Beres |
3. Snapshot of Crop Nutrient Balance with Use of a Rye Cover Crop in a Corn-soybean Rotation Under Tile Drainage in Eastern South DakotaThe purpose of this study was to evaluate the effect of using a winter rye cover crop within a corn/soybean rotation (rye seeded every fall and burned down each spring) on drainage water quality, crop nutrient status, and grain yield. Use of a winter rye cover crop to take up available N from the soil profile is a management tool that may help to lessen nutrient movement out of the soil profile while at the same time contributing to improved soil health. Winter rye is very winter hardy... P. Sexton, S. Kumar, S. Osborne, B. Brockmueller, A. Bly, B. Rops, A. Bawa, S. Bauder, J. Mcmaine |
4. Kernza in Wyoming: Evaluating Perennial Grains to Revitalize Wyoming Dryland AgricultureKernza, a perennial grain crop harvested from intermediate wheatgrass, has the potential to provide a sustainable alternative to wheat-fallow agriculture that can build soil health. Kernza had not yet been planted in Wyoming, where the drier climate presents unique challenges yet stands to particularly benefit from the adoption of a perennial crop. From spring 2021-2024, Kernza will be grown on five farms across southeast Wyoming under a variety of management strategies. We aim to determine Kernza’s... H. Rodgers, J.B. Norton, L.T. Van diepen |
5. Winter Wheat Response to Enchanced Efficiency Fertilizers in the Canadian PrairiesOptimal nitrogen (N) management can improve agronomic efficiency, and increase winter wheat (Triticum aestivum L.) grain yield and protein content. Two experiments were conducted to measure the responses of winter wheat to enhanced efficiency N fertilizers and timing/placements across the Canadian Prairies. Experiment 1 consisted of uncoated urea, urea+nitrification inhibitor (urea+eNtrench®), urea+urease and nitrification inhibitors (SuperU®), and polymer-coated urea (Environmentally... Z. Wang, J. Owens, X. Hao, L. Hall, K. Coles, C. Holzapfel, E. Rahmani, R. Karimi dehkordi, B. Beres |