Question
______ is not used to reclaim acid soils.
type="a" start="1"> CaCO 3 CaCl2 Gypsum Ca(OH)2Solution
Gypsum is not considered as liming materials because on its application to an acid it dissociates into (Ca2+) and sulphate (SO42-) ions: CaSO4 ↔ Ca 2+ + SO42- The accompanying anion is sulphate and it reacts with soil moisture produces mineral acid (H2SO4) which also increases soil acidity instead of reducing soil acidity.
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