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Cassava

{Manihot utilissima}
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Boron deficiency in cassava

When cassava are boron deficient, plants are typically short because of reduced internodes. Young leaves are normally dark green, small and deformed, and carried on short petioles. Lower mature leaves may be flecked with grey, brown, or purple spots near the tip and margins. Resin may exude from lesions on petioles. Root growth is suppressed. Ultimately the growing point dies.

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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