Which type of lime is used to reduce soil acidity and contains magnesium?

Dolomitic lime is specifically used to reduce soil acidity and contains magnesium in addition to calcium. It is composed of both calcium carbonate and magnesium carbonate, making it particularly beneficial in situations where soils are deficient in magnesium, a vital nutrient for many plants. By applying dolomitic lime, you can not only help to raise the pH of the soil, which mitigates acidity, but also enhance the nutrient content available to plants, promoting healthier growth.

In contrast, hydrated lime, calcitic lime, and quick lime do not provide the same balance of calcium and magnesium as dolomitic lime. Hydrated lime predominantly consists of calcium hydroxide and is often used to raise pH levels but lacks the magnesium component. Calcitic lime, while effective at reducing acidity as well, only contains calcium carbonate and does not provide the magnesium needed for soils that may be deficient. Quick lime, which is calcium oxide, is a more reactive form and can be used to alter soil pH as well but is not typically used in the same way as dolomitic lime for long-term soil improvements, especially in terms of magnesium enhancement.