*Alluvial soil is found in the river deltas of the eastern coastal plains.

*The three feature of alluvial soil :

1)According to their age, alluvial soils can be classified as old alluvial (Bhangar) and new alluvial (Khadar). It has more fine particles and is more fertile than bhangar.

2) It is a fertile soil as it is rich in minerals, especially potash and lime.

3)It is suitable for the growth of a large variety of rabi and kharif crops.

The soil found in the river deltas of the eastern coast is known as alluvial soil. This type of soil is formed by the deposition of sediment carried by rivers and is known for its fertility. The three main features of alluvial soil are as follows:

1. Composition:

Alluvial soil is composed of fine particles of silt, clay, and sand deposited by rivers. It is a mixture of different types of soil and varies in texture and composition depending on the river that deposited it. The soil is usually rich in organic matter and minerals, making it highly fertile.

2. Physical Properties:

Alluvial soil has several physical properties that make it unique. It has a high water-holding capacity and is able to retain moisture for long periods of time. It is also porous, which allows for good aeration and drainage. The soil is usually soft and easy to work with, making it ideal for agriculture.

3. Agricultural Importance:

Alluvial soil is highly fertile and is ideal for agriculture. It is used extensively for growing crops such as rice, wheat, sugarcane, and cotton. The soil is rich in nutrients such as nitrogen, phosphorus, and potassium, which are essential for plant growth. The high water-holding capacity of the soil makes it ideal for growing crops that require a lot of water.

In conclusion, alluvial soil found in the river deltas of the eastern coast is an important natural resource that plays a crucial role in agriculture. Its unique composition and physical properties make it highly fertile and ideal for growing crops.