Soil Fertility and Nutrient management (1+1)

Acid soil

• Soil acidity is an important agricultural problem while evaluating the production potential of most of the crops. Millions of hectares of land lie idle because of strong soil acidity. In India 49 million hectares of land have problems of soil acidity. Soil acidity is more common in regions with high rainfall. This leads to leaching of appreciable amounts of calcium and magnesium from the surface layer leading to build up of H and Al species causing soil more acidity.
  Acid soil?
  Acid soil is a base unsaturated soil with enough amount of adsorbed exchangeable H+ & Al3+ions with the soil pH of <6.0 is called acid soil. An acid soil is actually a mixed H-Al system, i.e. such a soil has both H+ and Al3+ ions as exchangeable ions.