explain about
any
three
soils found
Answers
Answer:
(i) Alluvial Soils :- It is most important and widespread soil of India. The entire northern plain is made of this soil . Alluvial have been deposited by three important Himalayan rivers — Ganga, Brahmaputra and Indus. These soils consist of various proportions of sand, silt, and day. These are of two types : Khadar and Bangar. They contain potash, phosphoric acid and limestone.
(ii) Black Soil :- These soils are black in colour and are also known as Regur or cotton soils.This type of soil is found in Deccan plateau region and is made up of lava flows.They are well known for their capacity to hold moisture. They are rich in calcium carbonate, magnesium, potash and lime.
(ii) Laterite Soil :- Laterite soil develops in areas of high temperature and heavy rainfall.This is the result of intense leaching. Humus content of soil is very low. These are found in Karanataka, Kerala, Tamil Nadu, Madhya Pradesh and the hilly areas of Orissa and Assam.
Explanation:
The soil:
- Sandy Soil
- Silt Soil
- Clay Soil
Sandy Soil
The first type of soil is sand. It consists of small particles of weathered rock. Sandy soils are one of the poorest types of soil for growing plants because it has very low nutrients and poor water holding capacity, which makes it hard for the plant’s roots to absorb water. This type of soil is very good for the drainage system. Sandy soil is usually formed by the breakdown or fragmentation of rocks like granite, limestone and quartz.
Silt Soil
Silt, which is known to have much smaller particles compared to sandy soil and is made up of rock and other mineral particles, which are smaller than sand and larger than clay. It is the smooth and fine quality of the soil that holds water better than sand. Silt is easily transported by moving currents and it is mainly found near the river, lake and other water bodies. The silt soil is more fertile compared to the other three types of soil. Therefore, it is also used in agricultural practices to improve soil fertility.
Clay Soil
Clay is the smallest particle amongst the other two types of soil. The particles in this soil are tightly packed together with each other with very little or no airspace. This soil has very good water storage qualities and makes it hard for moisture and air to penetrate into it. It is very sticky to the touch when wet, but smooth when dried. Clay is the densest and heaviest type of soil which does not drain well or provide space for plant roots to flourish.