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
Rio Grande do Sul, Brazil (2019-2020): One year study of Granubor
Wisconsin, USA (2022): The first corn study comparing Granubor and Solubor Flow +K
Boron aids in the transfer of sugars and nutrients from leaves to reproductive organs, and increases pollination and seed development. Corn requires a supply of available boron, especially during tasseling and silking.