As a soil amendment
Granular boron (2-4mm, such as Granubor®
) can be directly applied to soil and can also be bulk blended with other nutrients to provide specific boron rates, depending on crop needs. Boron works well as part of fluid fertilizers—assuming you use high-quality boron that is free from insoluble contaminants.
Refined boron can be used to add boron to compounded NPK fertilizers, usually by dissolving or suspending the boron in phosphoric acid or mixing with a solid component of the fertilizer before granulation. Known as “boronated fertilizer
,” this type of product is an excellent way to incorporate boron with a fertilizer regime.