Canola Response and Minimizing N Losses in Two-pass Seeding-fertilization Systems with Varying Placement Methods in Manitoba

Agronomic Practices 
Start Date
End Date
Principal Investigator
Mario Tenuta - University of Manitoba
Kevin Baron - University of Manitoba, Don Flaten - University of Manitoba
MCGA Funding
Total Project Funding
External Funding Partners

Research Objective

  • Evaluate different methods (surface broadcast, shallow banding, deep banding) of applying nitrogen fertilizer in one-pass seeding operations on canola yield and agronomic nitrogen use efficiency
  • Look at the effects on canola yield and fertilizer N loss with surface applications of urea in the fall and if Agrotrain® or SuperU® can decrease these losses
  • Determine nitrous oxide (N2O) emissions from urea and SuperU® products when used in the spring
  • Determine the overall N2O emissions and amount produced per unit of canola over the season with each of the different application methods of urea or SuperU®

Project Description

Surface applications of N fertilizer or manure increase the risk that gaseous nitrogen can be lost and turned into volatile NH3. Deep banding is a superior technique to combat this because the gaseous NH3 gets interconverted to NH4+ instead and will stay in the soil. But deep banding requires more horsepower and field operation time, so this study proposes to find a commercially available fertilizer and shallow band to determine if this combination will still provide adequate protection against volatilization and N2O loss while accelerating field operations.

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