The Mill Fertilizer 19-0-10 20% XCU, 2% Fe with Solu-Cal LimeThe Mill's exclusive fertilizer with lime is a 19 0 10 formula with 20% of the nitrogen protected for slow release and 2% Iron for a healthy green up of grass. In addition, it contains Solu Cal fast acting lime with microbials to provide enough calcium and lime to maintain soil pH at ideal levels through the season if pH is already in a healthy range. At a rate of 4 lbs 1000 sf or 180 lbs acre, a 50 lb bag will cover 11,000 sf in a convenient 1 pass