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Current Category » Soil Testing and Fetilizer Use

Lime Reaction and Reaction of Calcite in Acid Soils

Lime Reactions:

CaCO3 + H2O + CO2 à Ca ( HCO3)2 
Ca ( HCO3)2 à Ca2+ + HCO3
H + HCO3 à H2CO3
H2CO3 à H2O + CO2

Reaction of Calcite in Acid Soils:

Clay Al3+                                                   Ca2+
         Ca2+                                                  Ca2+
         Mg2+ + 3 CaCO3 + 3H2O à Clay  Ca2+ + 2Al ( OH)3
         Al3+                                                   Ca2+ + 2CO2
                                                                     Mg2+

Current Category » Soil Testing and Fetilizer Use