TAMPA, Fla. – October 28, 2026 -- Yara North America has made two biostimulant products commercially available in the U.S., reporting trial returns on investment of up to 15:1 in potatoes for one of them.

The products, YaraAmplix PROCOTE OPTIMIZE and YaraAmplix OPTITRAC, follow more than 10 years of research and development, multiyear global trials and four years of U.S. field trials across diverse growing conditions and crops.