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Products > Granubor > Application

How to Apply

Granubor’s uniform particle sizes are easy to incorporate into your bulk blend fertilizer.
Or apply directly to your soil to correct boron deficiency.
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Granubor > Application

Bulk blend

We engineered Granubor specifically for fertilizer blends, such as NPK, to provide a cost-efficient, flexible way to supply crops with boron throughout the growing season.

  • 2.8mm average particle size closely matches other granulated and compacted fertilizers 

  • Minimal segregation in bagging, transport, and application 

  • Highly crush resistant  

  • Screened between -4 and +14 mesh for uniform size and even application 

  • Field-tested with several common fertilizers, showing even and uniform spread 

Direct application

Many growers trust Granubor for direct application. As a highly pure, granulated form of boron, it’s easily spread under or around tree and plantation crops.  

  • Provides a gradual release of boron, ensuring your crops get consistent, long-lasting benefits 

  • Contains no impurities, fillers, coatings, or added ingredients 

  • Consistent particle sizes results in even distribution  

Need boron for a foliar application?  

If your crops or nutrition program demands a more rapid solution to

correct boron deficiency, consider Solubor®.  

Discover Solubor

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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