Pulse Industry

Investigating the effects of seeding rates and lentil seed sizes on diseases, weeds, yields and profitability

When developing plans for an upcoming crop season, producers must consider factors such as seeding rates, seeding costs, competition with weeds, lodging and risk for plant diseases. The seeding rate recommendation of 120 seeds per square meter was developed in large green lentils under weed-free conditions with minimal disease pressure, however research has shown that higher seeding rates can help with weed suppression and result in yield level increases.

The overall hypothesis of this research project is that optimum seeding rate in lentil is a function of the lentil seed size class and fungicide application. Multi-year field experiments will be conducted at multiple locations with different soil types to collect data for optimizing seeding rates. The research team is also assessing the effect of various seeding rate and row spacing on yields and plant disease levels.

Theme: Agronomic Improvements
Project Title: Effect of seeding rate and seed size on lentil diseases, weeds, yields and profitability
Funding partners: Saskatchewan Pulse Growers and Agriculture and Agri‐Food Canada
Research Team: Dr. Steven Shirtliffe - University of Saskatchewan

Links to more information:
- Project Abstract
- SPG PulsePoint magazine – June 2014, page 22 article titled: “Optimizing lentil yields while managing costs”
- SPG Annual Report 2015 – page 17: “Effecting of seeding rate on disease in lentils”


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