Boron Expert

Flavio Barcellos Cardoso

Flavio Barcellos Cardoso

Technical Sales Agronomist, South America

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An expert in plant ecophysiology, soil fertility, and fertilization, Flavio has several years of experience in the Brazilian fertilizer market. As an agronomist, he can discuss your boron fertilization needs as well as:

  • Abiotic stress physiology
  • Nutrition and plant mineral metabolism
  • Plant growth and development
  • Phytoregulators applied on crops
  • Soil fertility management

Flavio has a bachelor of science in agronomic engineering from Faculdades Integradas da Terra de Brasília. In addition, he holds a master’s degree in plant science and a doctorate degree in plant physiology from Federal University of Viçosa in Brazil.


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 500 customers with more than 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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