granular boron

Fertibor | 15% Boron | 100% Soluble

Residue free, easy to apply

Don’t let boron deficiency prevent you from realizing higher yields and healthier crops. By using residue-free Fertibor®, you can give crops full access to boron, an essential micronutrient. 

Fertibor is a versatile and easy way to satisfy boron demands. Free flowing and 100% soluble, we designed this product for easy incorporation into solid, liquid, or suspension fertilizers. It’s also commonly used for direct soil application as in palm oil. 

​Growers worldwide have relied on Fertibor for improved crop yields and quality for more than 35 years. Palm oil growers increase yield by 20% or more using Fertibor.

Discover how Fertibor performs better than unrefined alternatives. 

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100% soluble granular boron
  • 15% Boron
  • Easy to handle 
  • Free flowing
  • Homogenous particle size
  • OMRI Listed®
  • Use in solid, liquid, or suspension fertilizes
  • Direct soil application
  • Minimal impurities

Guaranteed access to boron nutrition

Fertibor’s complete availability means you will: 

Apply less

Fertibor is more soluble than competing products, reducing the amount you need.
Learn Why Quality Matters

Sacrifice nothing

Boron deficiency can limit crop yields by up to 20% annually. Ensuring the right boron supply results in higher output.
Measure impact on your yield

Save money

Less refined granular boron products can cost up to 2.5 times more over a growing season. 
See why unrefined costs more

See how Fertibor can increase your yield 

Compare Fertibor to alternative granular boron sources and you'll find it's not only easier to handle, but also disperses evenly in the field. That uniform distribution ensures crops receive the right amount of boron nutrition.

Discover the ROI you can expect when you correct boron deficiency with 100% soluble, refined Fertibor


Performance starts with purity 

Growers across the globe are realizing that fertilizer impurities pose lasting damage to both soil and crop health. That’s why it’s critical to source pure boron. Choosing Fertibor means you’re not only protecting your most important assets now but also increasing future yields and profits.

Uncompromising purity 

Unlike some competing products, our extensive refinement process minimizes impurities. 
See the difference

A special source

Fertibor is made from one of the world’s cleanest and purest borate sources. It’s OMRI Listed® and fully traceable. 
Learn more: OMRI certification

Supported by research 

As a leader in micronutrient research, we conduct regular field studies to ensure product efficacy. 
View Fertibor resources

Get more Fertibor information

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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