Revv-Up™ | A unique combination of spore-form microbial bacteria containing bio actives of Plant Growth Promoting Rhizobacteria (PGPR). Revv-uP is designed to increase the availability and uptake of phosphorus. Its unique formulation allows it to be tank mixed with liquid fertilizer, herbicides, and other ag chemistries. It is formulated to be applied in-furrow, side-dress or topdress.