{Solanum tuberosum}

Boron Deficiency in Potato

Symptoms of boron deficiency are seldom seen on the shoot, although reduced growth with short internodes and curled leaves have been reported. Symptoms are more readily seen in the tubers in the form of brown necrotic patches. The condition known as “internal rust spot” is responsive to boron application but it is yet to be proved whether it is due to boron deficiency or only an indirect association with boron. The cooking quality of the tubers may be impaired.

Potato Resources
Blog: Pass the Potatoes

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 2.25 - 4.5
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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