what are the different types of soil found in india which is the most fertile soil?
['Alluvial soils: The most fertile soil is the alluvial soil. ... ', 'Black soils: Black soil is rich in calcium, potassium and magnesium but has poor nitrogen content. ... ', 'Red soils: Red soil are usually found in warm, temperate climate zones like India. ... ', 'Laterite soils: Laterite soil is formed due to intense leaching by rain water.']