why quick lime and slaked lime is added to soil
if the soil is too acidic (having low ph), then it is treated with materials like quick lime (calcium oxide) or slaked lime(calcium hydroxide) or chalk ( calcium carbonate). all these materials are bases and hence react with the excess acid present in soil and reduce its acidity. thus, a farmer should add lime ( or slaked lime or chalk) in his fields when the soil is too acidic.
dear frnd i hope it is clear to u nw.
Quick lime and slaked lime are added to the soil to reduce the acidity of soil which the soil may have developed. The acidity in the soil may have developed due to excess farming on the same soil. The use of fertilizers is also one of the reason for the acidity of soil.
@STD and Harsha:very ggod attempt.keep it up!