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Boron Deficiency in Trees and Cover Crops

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Additional tree and cover crop resources

Forestry: Boron in forestry production
Boron deficiency is the most common micronutrient limitation in forest plantations. It occurs in many countries, particularly in exotic plantations of eucalyp... Learn More
Eucalyptus (Brazil)
Mato Grosso, Brazil (2019-2022): Midway results of a five-year study results in higher volumes with Granubor. Learn More
Eucalyptus Trees from Metamorphic Rock
Prized by the paper industry, eucalyptus grows quickly in its native Australia. When enterprising growers transplanted the crop to Portugal, however, they qui... Learn More

U.S. Borax products for trees and cover crops

15% Boron | | OMRI Certified
Fertibor
Optimum product for suspensions

A fine crystalline borate ideal for NPK compound fertilizers and suspensions. Manufactured as free-flowing granules, Fertibor is easily handled and offers superior flow and consistency.

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15% Boron | | OMRI Certified
Granubor
Made especially for bulk blenders

A pure, 100% water-soluble micronutrient that meets boron demand during the growing season. Made especially for bulk blenders, Granubor helps to ensure uniform distribution in nutritional blends and in the field.

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20.5% Boron | | OMRI Certified
Solubor
Product of choice for foliar applications

A concentrated, highly soluble, and fast dissolving powder that is ideal for foliar and other sprays. With the highest concentration of boron in any approved product, Solubor is an economical choice for nutritional formulations.

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11% Boron (w/w)
Liquibor
Liquid boron from boric acid

The convenience of liquid boron fertilizer straight to your farm with no measuring or mixing required.

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10% Boron | | OMRI Certified
Solubor Flow
For fertigation or hydroponic growing

First and only aqueous suspension of sodium borate microcrystals.

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14.5% Boron | 29% Zinc
Zincubor
Perfect combination of zinc and boron

Because zinc and boron deficiency are widespread around the world, a product with both nutrients is a good fit in many regions. Zincubor brings these two important micronutrients together in one product.

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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 our customers with more than 1,200 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.

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