Xtreme Gardening Azos Nitrogen Fixing Bacteria, 8 lb.Great for Roots & Growth in soil, coco, rockwool and all hydroponics. Clone easier, propagate faster, and transplant in a fraction of the time! AZOS, short for Azospirillum Brasilense, is a nitrogen fixing super bacterium that can replace 50% of the nitrogen fertilizer required by plants. This highly beneficial bacteria, simply applied as a spray after soil temperatures reach the 60F 65F range, provides an eco conscious alternative to synthetic