Agritein, LLC is a Louisiana-based agricultural input firm that specializes in regenerative and sustainable fertilizers. The company provides BF4™ Kelp Extract Fertilizer and BF4™ Manure Fertilizer.

These products use patented amino-acid complexes, microbial rhizosphere stimulation, and kelp extracts to improve plant health, root development, nutrient availability, and soil biology. 

Agritein performs research on a variety of commodities and locations, including maize, soybeans, sugar beets, Russet Burbank potatoes, and wine grapes, to validate performance in commercial trials. Their product information and application guides refer to state registrations, soil experiments, and crop-specific data for North American markets.