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Phaseolus atropurpureus

{Phaseolus atropurpureus}
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Boron deficiency in Phaseolus atropurpureus

Symptoms of boron deficiency in Phaseolus atropurpureus first appear on the youngest leaves, which will be:

  • Dark green
  • Thick
  • Turgid
  • Brittle

New secondary growths are also likely to be affected. Roots will be brown and tips swollen.

U.S. Borax, part of Rio Tinto, is a global leader in the supply and science of borates—naturally-occurring minerals containing boron and other elements. We are 1,000 people serving 650 customers with more than 1,800 delivery locations globally. We supply around 30% of the world’s need for refined borates from our world-class mine in Boron, California, about 100 miles northeast of Los Angeles. Learn more about Rio Tinto.

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