Research on the Farm (ROTF)

Result

At 8 of 17 sites, seeding rate had a significant effect on plant counts. In these cases, the highest seeding rates resulted in the highest plant population. At 2 of 17 trial sites there were significant differences between seeding rates, however differences were marginal and did not result in increased profit, in once case the lower seeding rate resulted in higher overall yield . Overall, at most sites, grain yield was not affected by a change in seed rate from normal practice.

 Summary

Manitoba farmers are achieving recommended plant densities of 22-25 plant/ft2. Manitoba farmer have a good idea of the appropriate seeding rate on their farm.

Additional Considerations: Lower seeding rate and plant populations can reduce crop competitiveness to field pest. Uniformity of crop maturity will be more variable with lower seeding rates, reducing crop protection product efficiencies.