Describe the Alluvial soil under the following heads: formation, distribution, classification, nutrient and cultivation.
Answers
Answer:
Formation -
Alluvial soil is made up of sand, silt and clay deposited by rivers like Ganga, kaveri, etc.
Distribution -
Alluvial soil covers the most of the parts of India about 45% . It covers almost all the northern plains area
Nutrients -
It is rich in potash, phosphoric acid, and nitrogen. Moreover it is also a rich source of humus.
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Answer:
a. Formation: Formation Alluvial soil is made-up of silt, sand and clay. It is deposited by three important Himalayan river-systems the Indus, the Ganga and the Brahmaputra. It is bigger and coarser in the upper reaches of the river and becomes finer as the river flows down.
b. Distribution: (b) Distribution/Area This ‘soil is prevalent in the river valleys of the Northern plains (Indus, Ganga, Brahmaputra), strips in Gujarat and Rajasthan, as well as in the Eastern coastal plains in the deltas of rivers of the Peninsular plateau (Mahanadi, Krishna, Kaveri).
c.Classification: Classification According to their age, alluvial soils can be classified as (Bangar) old alluvial and Khadar (new alluvial). Khadar has higher concentration of kankar and contains more fine particles than Bangar.
d. Nutrient: Nutrients/Minerals This soil is rich in nutrients like potash, phosphoric acid and lime, which is suitable for growing paddy, wheat, sugarcane and other cereal and pulse crops.
e.Cultivation: It is present mostly along rivers and is carried by its streams during weathering of rocks. The soil is generally covered by tall grasses and forests, as well as a number of crops, such as rice, wheat, sugarcane, tobacco, maize, cotton, soybean, jute, oilseeds, fruits, vegetables, etc.
Explanation:
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