Nitrogen inoculants work when the Rhizobia bacteria colonize roots and start to multiply. The bacteria infect the root hairs and cause root cells to swell, forming nodules. Within these nodules, the bacteria work as miniature "nitrogen factories," pulling nitrogen from the air and converting it into a form the plant can use. Some legumes can fix up to 80% of their total nitrogen requirements, with the remainder coming from soil nitrogen reserves. To get the greatest fertility efficiency boost, use high-performing legume inoculants.
