Ironite II contains high iron for quick greening and low nitrogen to avoid growth surge. Includes AST and beneficial microbes, allowing the soil to absorb more water and the turf to utilize nutrients that were previously locked in the soil. Non-staining. 1-0-1. 1\% urea nitrogen, 1\% soluable potash, 8\% calcium, 5\% combined sulfur, 20\% iron.