It acts as a soil buffer, it neutralises the acids in the acidic soils there by raising the soil pH back to the normal range (6.5 to 7.5).
summarised benefits:
~increasing pH in acidic soil, reducing acidity, and increasing alkalinity.
~a source of calcium for plants improving water penetration in acidic soils.
~improving the absorption of NPKnutrients to plants growing in acid soils reducing the need for application of costly, potentially toxic chemical fertilizers.
~it kills soil parasites and breaks life cycle of insect pests.
~ it improves the efficiency of herbicides.
~it teduces soil toxicity.