2010 – Issue 6

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  • Tips for soggy fields

    Issues of the week June 2, 2010 — Excess rain continues to hold up seeding in parts of Saskatchewan and has drowned some canola in Manitoba. In this week’s Canola Watch, we discuss broadcast seeding tips, nutrient losses due to saturation, and management tips for crusted fields. For growers who still have canola to seed […]

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  • Crop and weather update

    Peace (B.C. and Alberta): The crop is seeded and about 80% is emerged. After general showers the past week, the region is off to a good start. Alberta: Canola seeding is complete except for a few fields and pockets here and there. Rain and snow the past week have slowed growth, but damage appears minimal. Click […]

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  • Quick Hitters

        Rainfall accumulation in May was more than 200% of normal in many parts of Saskatchewan and Manitoba. This will be no surprise to many of you. This AAFC map shows May moisture as a percent of normal. Blue is >200%. For more maps, visit AAFC’s weather page. Mud raises the risk of clubroot spread. […]

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  • Have a conversation with crop insurance

    While the general Saskatchewan crop insurance deadline to have crops seeded is June 20, the actual date for canola differs by rural municipality and by variety. For example, at R.M. 459 around Melfort, the deadline for one canola hybrid is June 7 while the deadline for another is June 9. This information is not available […]

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  • Excess moisture restricts nutrient uptake, speeds N loss

    Canola is quite susceptible to water logging and shows a yield reduction after only three days. The key is that wet soils cause an oxygen deficiency, which reduces root respiration and growth. Root failure reduces nutrient uptake, and plants can die. CCC senior agronomy specialist Derwyn Hammond provided this photo of his own canola field. His […]

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  • What to do about crusting?

    Wet conditions followed by warm sunny days may cause soil crusting, which stops seedlings from emerging. We don’t have any research to show the best ways to break up crusting and free the crop. If a few plants have emerged, it may be best to leave them be. Two plants per square foot are better […]

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  • Consider higher spray rates

    Weed growth will resume quickly when conditions get warm and the rains stop. Then it will be at least a day or two after that before fields are dry enough to drive on and before crop stressed by frost or excess moisture recover enough to allow good tolerance of herbicide. That means bigger weeds to […]

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Canola Watch