Top-dressing at early flower
Late sulphur top up. The ideal time for a sulphur top up is any time before flowering, but a top up at early flowering may pay off if plants are…
Top dressing a weak crop
Please read an updated version of this article.
Good time for top dressing
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Top dress: Identify N and S deficiency
Please read an updated version of this article. The Fertilizer section of the Canola Encyclopedia has more on nutrient deficiency symptoms. Look under the chapters headings for each nutrient.