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Fluid Journal : Spring 2016
13 The Fluid Journal Spring 2016 current 4R practices. New field data are used to refine a simulation model to predict the fate of N in agricultural fields. 2. Improved Nitrogen Application Methods and Nitrogen Sources for Corn in Southwestern Ontario. Dr. Craig Drury, Woodslee, Ontario, CAN-4RC02. Understanding how 4R stewardship can compensate for the need to quickly apply N fertilizers prior to spring planting while improving efficiency. The urgency to rapidly plant and fertilize crops in the spring when weather conditions become ideal has complicated farmer decisions. Using 4R principles for N fertilizer management can improve corn yield, while reducing greenhouse gas and ammonia emissions. 3. Optimization of 4R Nitrogen Fertilization Practices in Response to Production System Uncertainties Quantifying the Influence of Soil and Weather on Crop Yield and Potential N Fertilizer Loss. Dr. Nicolas Tremblay, St. Jean, Quebec, CAN- 4RC03. In this scientific review, datasets are being collected and combined to determine how factors such as precipitation, temperature, and season of year can be included in implementation of 4R practices. 4. Can Foliar Urea Reduce Nitrogen Losses from Potato Production in Atlantic Canada? Dr. David Burton, Truro, Nova Scotia, CAN- 4RC04. Spraying potato leaves with a urea- containing solution might allow farmers to reduce the amount of N fertilizer applied to the soil. Potato yields, N leaching, and greenhouse gas emissions are being measured in potato fields receiving combinations of foliar and soil-applied N. 5. Nitrogen Stabilizers to Enhance Nitrogen Use Efficiency (NUE) and Reduce Greenhouse Gas Emissions. Dr. Linda Hall, Lethbridge, Edmonton and Devon, Alberta, CAN-4RC05. Determining how urea fertilizer stabilizer additives applied to spring wheat increase yield and quality, while reducing gaseous and leaching losses of N. 6. Coordinated Nitrogen and Sulfur Management in Sulfur-deficient Soils. Dr. Miles Dyck, Breton, Alberta, CAN-4RC06. Fertilizing with both N and S has been linked Figure 1. In addition to the 18 projects shown in Figure 1, five literature reviews with media-analyses were funded and have been completed. ▼ DOWNLOAD