Lime Requirement of Acid Soils

摘要

THE soils of southern Karnataka in general, are acidic with poor base saturation and low exchange capactity. These soils come under high humid and heavy rainfall regions thus have become acidic due to leaching of bases (Ca, Mg and K) from the soil exchange complex. These soils are comparatively rich in organic matter and total N. Poor growth of crops on these soils is attributed to the presence of toxic amounts of Fe, Al, Mn and deficiency of P, Mo and less activity of soil microorganisms.