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Kenaf

{Hibiscus cannabinus}
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Boron Deficiency in Kenaf

In the early stages of boron deficiency, the kenaf shoots are dark green and the young leaves may be malformed. The midrib and main veins become necrotic which results in the leaf curving backwards. Ultimately, young leaves fail to expand and the shoots die back.

Petiole collapse, caused by an internal necrosis, can cause the death of otherwise normal leaves. Root growth is reduced and roots are short and dark and have thick tips.

Soil Application (Suggested rates of application)

  Granubor Fertibor
LBS/ACRE 3-6 3-6
KG/HA 3.38 - 6.75 3.38 - 6.75

Foliar Application (Suggested rates of application)

  Solubor
LBS/ACRE 2-4
KG/HA 2.25 - 4.5
Value in Use
Product
Acreage
Current Yield (Per Acre)
Lbs
Expected Sale Price

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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