Plant establishment

  • New calculator matches seeding rate to risk factors

    Plant establishment

    The new Canola Calculator has two tools to help growers set seeding rates and plant stands that match seed size, risk factors and estimated seed survival.

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  • Tips to prevent and manage soil compaction

    Plant establishment

    Manitoba Agriculture soil fertility specialist John Heard shows how compaction affects yield in dry and wet soils. Click image to enlarge.

    At the Soil Compaction Workshop at Agriculture and Agri-Food Canada’s centre in Portage la Prairie, Man., attendees learned…

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  • What do I do about ruts?

    Plant establishment

    We know that tillage will spread clubroot as well as weed seeds and verticillium, but ruts can create headaches for combining, fall spraying and seeding next spring. Working wet fields can also cause compaction.

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  • Top 10: Highlights from June 21 canolaPALOOZA

    Plant establishment

    Sweep netting begins for lygus and cabbage seedpod weevil.

    By this stage of the season, flea beetle and cutworm risks are lower because crops are bigger and these two insects are in natural seasonal decline. Adult flea beetles have laid their eggs and are dying. Cutworms are pupating. We’re now moving toward sweep net timing for lygus and cabbage seedpod weevil.

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  • 7 causes for missing pods

    Plant establishment

    Missing pods due to heat blast on flowers. Photo credit: Keith Gabert

    Heat, drought, off-label herbicide applications, male sterility, insects, sulphur deficiency, boron deficiency.

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  • Seed depth assessment

    Plant establishment

    Use a seed depth tool to mark the depth where seed was found. Then use the blade of a shovel to mark ground level on the tool. Credit: Brooke Moon

    Seeding too deep is a common stand establishment issue in canola. This becomes clear as plants emerge, especially when some rows emerge earlier and more vigorously than others.

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  • Canola usually recovers from early-season hail

    Plant establishment

    Hail on canola, June 21, 2015. Credit: Val Katerenchuk

    The later hail occurs, the higher the chance of yield loss, given that the plants have less time to recover. Hail on seedlings rarely results in yield loss. Heavy hail at the 6-leaf stage will have more yield loss but recovery can occur.

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  • Broadcast seeding canola — Tips

    Plant establishment

    This canola was broadcast onto fairly heavy residue. Source: Justine Cornelsen

    Broadcast seeding is a last resort, only to be used when proper placement with a drill is not possible. In late springs with wet conditions, for example, broadcast seeding may be the only way to get the job done.

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  • Canopy closure: Canola vs. wheat

    Plant establishment

    It may seem that canola grows slower than wheat, but consider what variables may influence this observation. Wheat is often seeded earlier, which is one major reason why it may appear to be growing faster. A 2006-08 5-location study* by Neil Harker with Agriculture and Agri-Food Canada in Lacombe, Alberta, compared two canola hybrids and […]

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  • Young canola more vulnerable to waterlogging

    Plant establishment

    Excess water stress small

    A few days in waterlogged soil can be enough to kill young canola plants.

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