{Phaseolus spp.}

Boron Deficiency in Bean

There have been very few cases of boron deficiency in beans, which are particularly sensitive to excess application of boron. As little as 2.5 lbs./acre of boron has been known to reduce yield. However, boron deficiency also reduces growth, with leaves near the growing point being small and chlorotic. The growing point becomes blackened and dies, and lateral shoots develop near the base of the plant. The flower buds may shrivel and be shed without opening.

Soil Application (Suggested rates of application)

  Granubor 2 Fertibor
LBS./ACRE 3-6 3-6
KG/HA 3.38 - 6.75 3.38 - 6.75

Foliar Application (Suggested rates of application)

KG/HA 4.5 - 10.125
Value in Use
Application Method
Current Yield (Per Acre)
Expected Sale Price

Rio Tinto Borates is a global leader in the supply and science of borates - naturally-occurring minerals containing boron and other elements. Refined borates are essential nutrients for crops. We are 1,000 people serving 500 customers with over 1,700 delivery locations globally. We supply 30% of the world's need for refined borates from our world-class mine in Boron, California, about 100 miles east of Los Angeles.  Learn more about Rio Tinto

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