Science

Rotate crops for blackleg and clubroot management

Science Edition 2014—Key practice: Increasing the number of years between canola crops in the rotation reduces incidence and severity of blackleg and clubroot in fields. Key research: Kutcher, H.R., University of Saskatchewan, et al. “Blackleg Disease of Canola Mitigated by Resistant Cultivars and Four-Year Crop Rotations in Western Canada.” Canadian Journal of Plant Pathology (2013). Peng, G.,...
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Science

Harvest prep starts in the spring

Studies have found that lower harvest losses in canola are associated with higher yield potential, especially when straight combining. This could be attributed to the additional strategies high-yielding growers carry out earlier in the season, such as seeding early, early weed control and frequent field scouting.
Science Edition 2014—Key practice: Reducing harvest losses starts with strong crop establishment, adequate fertilization, early weed control and frequent scouting. Key research: Liu, C., Agriculture and Agri-Food Canada (AAFC), et al. “Evaluation of On-Farm Crop Management Decisions on Canola Productivity.” Canadian Journal of Plant Science (2014). Watson, P.R., Alberta Research Council, et al. “Canola Harvest Management Study.”...
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Science

Aim for uniform stands

Science Edition 2014—Key practice: Uniform stands, with the same number of plants per square foot across the field and with plants at the same growth stage, are proven to increase yields. Key research: Angadi, S.V., Agriculture and Agri-Food Canada (AAFC), et al. “Yield Adjustment by Canola Grown at Different Plant Populations under Semiarid Conditions.” Crop Science 43...
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Science

Thicker stands improve weed management

Science Edition 2014—Key practice: Higher seeding rates mean a more competitive crop, which can translate into higher yields and lower in-crop weed management costs. Key research: Harker, K.N., Agriculture and Agri-Food Canada (AAFC), et al. “High-Yield No-Till Canola Production on the Canadian Prairies.” Canadian Journal of Plant Science. (2012). Harker, K.N., AAFC, et al. “Seeding Rate, Herbicide...
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Science

Wait for 60 percent seed colour change

By delaying swathing until 60 to 70 percent seed colour change on the main stem, canola fields have been shown to produce higher seed weights, greater oil content, lower green seed percentage and a higher grade.
Science Edition 2014—Growing spring canola in the moderately short growing season of the Canadian Prairies always tests the tipping point between maximum maturity time (to produce maximum yield) and avoiding the first frost. With growers taking on more acres than ever, the time crunch at harvest can make it tempting to begin swathing early. But the yield...
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