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Sulfur and Onions

Posted by Peter_6 (My Page) on
Mon, Oct 10, 05 at 18:10

Should I add sulfur to my onion bed? My last soil test (2002) showed 51 ppm, which - in general - I think is fine, although some might think it high. The onion yield has been fine. But I remember my dad always added extra sulfur for onions. So what is the best level? Regards, Peter.

Follow-Up Postings:

RE: Sulfur and Onions

If your soil is at 51 ppm, you are apparently better than 4 times high for onions! For that crop, 0 - 6 is low. 7 - 12 is medium, and 12.1 and up is high. If it's 0 - 6, then 20 to 30 pounds of sulfur per acre should be added broadcast or 10 to 15 pounds applied to rows. Above that, no more is needed.


RE: Sulfur and Onions

  • Posted by coho z8/9 N. Calif (My Page) on
    Tue, Oct 11, 05 at 0:24

Low sulfur is required for sweet onions. High sulfur makes them hot.

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