Coffee (São Paulo, Brazil)

Study details

  • Research institution: Adubai
  • Researcher: Fabio Vale
  • ​Date: 2013 – 2015
  • Location: Espirito Santo do Pinhal, São Paulo, Brazil
  • Soil: pH 5.3
  • Boron fertilizer(s): Boric acid, ulexite, and Granubor®
  • Crop variety: Catuai Amarelo IAC 62
  • Trial design: Randomized complete block design with 4 reps. Treatments were applied in one application in November 2013 and then again in November 2014.

Results

Across two years of study at a boron rate of 1.5 kg B/ha, Granubor consistently had a better performance than boric acid and ulexite to increase coffee grain yield. On average, Granubor increased coffee yield in 1,670 kg/ha compared to the control and 995 kg/ha compared to ulexite.

Resources


Download Field Study



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 northeast of Los Angeles.  Learn more about Rio Tinto.

Copyright © 2020 Rio Tinto. All Rights Reserved.