Unit - 3
Chapter 11: Chapter 3 · Social Science · EN medium
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India - Agriculture Soil Type Characteristics Distribution Crops growing Alluvial soil Khadar – light coloured, more siliceous. Bhangar – the older alluvium composed of lime nodules and has clayey composition. It is dark in colour. Formation - sediments deposited by streams and rivers when they slowly loose. Chemical properties - rich in potash, phosphoric acid, lime and carbon compounds but poor in nitrogen. Nature –Sandy-clay-silt profile shows no marked differentiation. Ganga and Brahmaputra river valleys;
📖 Class 10 Social Science English 2025 Edition www.tntextbooks.in · Page 160
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India - Agriculture Soil Type Characteristics Distribution Crops growing Alluvial soil Khadar – light coloured, more siliceous. Bhangar – the older alluvium composed of lime nodules and has clayey composition. It is dark in colour. Formation - sediments deposited by streams and rivers when they slowly loose.
Chemical properties - rich in potash, phosphoric acid, lime and carbon compounds but poor in nitrogen. Nature –Sandy-clay-silt profile shows no marked differentiation. Ganga and Brahmaputra river valleys;
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