Summary: |
Canola is a major cash crop of the Parkland region of the Prairies where many soils (especially Gray Wooded) are deficient or potentially deficient in plant-available sulphur (S) for canola. The objectives of this study were to assess the amount of yield loss when S deficiency on canola occurs during the growing season and to compare the effects of S fertilization at different growth stages on seed yield and quality of canola in northeastern Saskatchewan. Overall, S application at seeding appeared to be the best strategy to overcome S deficiency and optimize seed yield. A foliar application can correct S deficiencies during the growing season substantially if applied before bolting stage, and moderately as late as early flowering stage. The results of boron (B) fertilization trials showed that regardless of the site, year, canola cultivar, as well as fertilizer rate, time and method of application, B fertilization had no consistent influence on seed yield, protein content or oil content. |
