Lime Requirement

The quantity of calcium carbonate needed to raise a specified quantity of soil from one pH level to another pre-determined pH level. Typically, the calculation for many agricultural crops is to raise an acidic soil up to pH 6.5 to encourage maximum yield. This is not an aim for turfgrass swards, but altering soils in the soil cultivation stage might be considered for a very acidic soil on which a perennial ryegrass sports surface is to be produced.