Presentation on boron in South American South America, by Fabiano Silvestrin, MSc Principal Advisor, Global Market Development Agriculture U.S. Borax
Without enough boron, fruit and nut trees typically suffer dieback of branches, premature fruit drop, and poor nut or fruit development as well as cracked or misshapen fruit.
Unlike South American ulexites, Granubor refined borate fertilizer is specifically designed to release boron when crops need it the most. For corn, this means your crops receive boron at the critical V6-R1 phases.
Unlike South American ulexites, Granubor refined borate fertilizer is specifically designed to release boron when crops need it the most. For soybeans, this means your crops receive boron at the critical V6-R1 phases.
Saskatchewan and Alberta, Canada (2023): Application of Granubor and Solubor yielded increases in comparison to the control treatment
North Dakota, USA (2025): Granubor + Solubor deliver highest grain yield performance.
A comparison between Granubor and South American ulexite
Minas Gerais, Brazil (2016-2017): Highest yield
São Paulo, Brazil (2013-2015): Consistent yield increase
São Sebastião da Grama, Brazil (2020-2023): Higher coffee yield with Granubor
East South Central, USA: Three trials of borate fertilizer on corn in Mississippi, Tennessee, and Kentucky
Paraná, Brazil (2014-2016): Several field trials of U.S. Borax fertilizer products on corn