Fertility

  • Early fall soil tests and fertilizer applications

    Fertility

    Some growers are already doing soil tests and making fall fertilizer applications. While this may not be the ideal timing for soil tests of fertilizer applications (closer to freeze up is better), this timing may satisfy a number of other issues, including custom soil-sampler availability, wanting test results before fall application, and checking to see if current soil nutrient levels could explain lower- or higher-than-expected yields this year.

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  • Boron and other micronutrients: Economic results are rare

    Fertility

    When well-designed research studies are done for micronutrients in canola, results show little if any economic benefit.

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  • The right time for fall soil tests

    Fertility

    For results to be as close as possible to the situation next spring, the ideal time to take fall samples is when soil temperatures drop below 10°C and as close to freeze-up as possible.

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  • Top dress tips for nitrogen and sulphur

    Fertility

    Western Canada has a short growing season. Crops in Western Canada start to take up nutrients early and uptake escalates quickly. For these reasons, the ideal timing for fertilizer application is at seeding. This saves an extra pass over the field and ensures that the expected fertilizer requirement is in place when the crop needs it. But there are times when an in-crop top up of nitrogen or sulphur makes sense.

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  • Fertilizer top dress: 2 questions

    Fertility

    We had two questions in the past week about top-dressing fertilizer after seeding.

    1. How early is too early to top dress?
    2. Does adding S stabilize N against losses?

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  • The right nitrogen system for you

    Fertility

    Each farm will base its nitrogen application practices on time, labour, equipment and cost. Often losses in efficiency in one area can be compensated for by improvements in another. The “best” nitrogen (N) system is not universal, but will depend on the major limiting factors on each individual farm. Here are key points to consider for the six most common systems.

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  • Fertilizer applications in November

    Fertility

    The combination of warm weather and moist soils is almost ideal for losses. Growers may want to reassess the nutrient situation with a time-of-seeding soil test, then top-dress if amounts are less than expected.

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  • Soil sampling in November

    Fertility

    Given the warm temperatures and moist soil conditions, the ideal time for fall soil samples may still be ahead of us. For results to be as close as possible to the situation next spring, the ideal time to take fall samples is when soil temperatures drop below 10°C and as close to freeze-up as possible.

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  • How to reduce fall N fertilizer losses

    Fertility

    The key strategy of fall fertilization is to store nitrogen over the winter in the ammonium form – which is held on clay and organic matter – and is referred to as stabilized N. To keep nitrogen in this stabilized ammonium form and protect it for crop use next year…

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  • Fall soil sampling and snow

    Fertility

    Snow in October is not usually a major problem for fall soil tests. Temperatures often improve before winter sets in for good, so sampling opportunities usually present themselves.

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  • Top 10: Planning for next season

    Fertility

    fall_weeds_cut_whetter600

    In preparation for next season, here are a few field and office jobs and WHEN to start them.

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  • The right time for fall soil testing

    Fertility

    For results to be as close as possible to the situation next spring, the ideal time to take fall samples is when soil temperatures drop below 10°C and as close to freeze-up as possible.

    READ MORE

  • Timing and depth for fall fertilizer

    Fertility

    Fall fertilizer is best applied as close to freeze up as possible to balance two objectives: (1) allow soil to seal over the band and (2) reduce losses due to high microbial activity in warm soils.

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  • When you see something new

    Fertility

    Mystery symptoms 2016. Credit: Warren Ward

    Before spending money on a treatment, growers will need to identify the cause. The Canola Diagnostic Tool can help you work through the possibilities. A few localized tests can also help with the diagnosis….

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  • Top 10: Highlights from June 21 canolaPALOOZA

    Fertility

    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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