Seeding date decisions are often driven more by historical frost risk than present conditions. That is why many growers will not seed canola before May 1, even if their area had what seemed like favourable seeding conditions in April. Historical frost risk can be interpreted differently based on the crop’s frost tolerance and the grower’s appetite for risk…
April 27, 2016 - Issue 6
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Ralph Wright, who leads the agro-meteorology division with Alberta Agriculture and Forestry, joins Canola Council of Canada agronomy specialist Autumn Barnes and host Jay Whetter in a discussion about frost risk and canola seeding dates. While the discussion focuses on Southern Alberta, growers and agronomists in all regions will learn from the discussion about frost……
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If you have perfect seeding conditions in late April, should you seed canola? Early seeding usually improves canola yield potential and quality, but these benefits depend on survival of a sufficient plant population — ideally 7 to 10 plants per square foot, and a minimum of 4 to 5. An early-seeded crop that is thin……
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If perennials, winter annuals and early emerging weeds — like this stinkweed — are growing, there is no benefit to waiting for later emerging weeds such as lamb’s quarters or redroot pigweed to show up. Weeds present now will have a greater impact on yield than weeds that emerge with or after the crop…
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Growers with dry soil conditions may be tempted to reduce fertilizer rates. After all, if crops do not reach yield potential, reducing the cash outlay at seeding may mean that a lower-yielding crop could still be profitable. However, when it comes to canola in particular, fertilizing for average or target yields in spring is often the most economic practice —…
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