Yes, rhizobial inoculants are natural, non-synthetic materials, and are allowed. The only rhizobial inoculants that are prohibited are those produced through genetic engineering. GMO inoculants are considered “excluded methods,” and are not allowed in organic production. Inoculants used by organic producers must not contain any prohibited materials, including inert ingredients. Producers must document that any seed inoculants used or planned for use are free of prohibited materials.


