Get More From Every Cut, Choose TerraMax Alfalfa Booster. TerraMax Alfalfa Booster is an innovative, liquid treatment that combines two powerful bacteria, Sinorhizobium and Azospirillum, into one easy-to-use formula. Together, they work to enhance plant health and boost yields cut after cut. Sinorhizobium encourages nodulation with each application. Azospirillum boosts nitrogen fixation even further while stimulating enhanced root growth, helping plants access nutrients and water more effectively. Compatible & Convenient Designed for flexibility, Alfalfa Booster easily integrates with most commonly used liquid fertilizers and tank-mix products, making it simple to add to your current program without extra hassle.