If the soil is acidic (PH < 7), then such soil should be treated with quick lime [calcium oxide(CaO)] or slaked lime [calcium hydroxide(CaOH)2] or chalk [calcium carbonate(CaCO3)].

If the soil is acidic (PH < 7), then such soil should be treated with quick lime [calcium oxide(CaO)] or slaked lime [calcium hydroxide(CaOH)2] or chalk [calcium carbonate(CaCO3)].