Lime is available in pulverized and pelletized forms. Both types use the same lime material, only the form is different. Both types work equally well with no significant differences in reaction time or results. The pulverized form is less expensive, but the pelletized form is easier to apply. There are two types of lime available, calcitic and dolomitic.
Calcitic lime is composed of calcium carbonate and contains little or no magnesium.
Dolomitic lime is a mixture of calcium and magnesium carbonate and contains a minimum of six percent magnesium. On soils where magnesium is difficult to maintain, dolomitic lime can be used as a source of magnesium. If both lime and magnesium box are needed, use dolomitic lime. Most bagged lime sold contains dolomitic lime. Best results will be achieved if the suggested amount and type of lime is thoroughly mixed into the upper six inches of soil.