Understanding Regur Soil

The question asks for the other name for Regur soil in India. Regur soil is a significant type of soil found in the country, known for its unique properties.

Let's look at the options provided:

• Red and yellow soil
• Laterite soil
• Alluvial Soil
• Black soil

Different types of soil have distinct characteristics and regional distributions in India. Regur soil is particularly famous for its association with certain crops.

Regur Soil: The Black Soil Connection

Regur soil is indeed known by another common name in India. This name reflects one of its most noticeable features.

Based on geographical and agricultural studies of Indian soils, Regur soil is also widely referred to as Black soil. The name 'Black soil' comes from its dark colour.

This soil type is extensively found in the Deccan trap region, covering parts of Maharashtra, Madhya Pradesh, Gujarat, Andhra Pradesh, and some parts of Tamil Nadu. Black soil is considered ideal for growing cotton, hence it is also sometimes called 'Black Cotton Soil'.

Why Black Soil is the Correct Name for Regur Soil

The term 'Regur' is a local name, predominantly used in parts of India, while 'Black soil' is a more generalized term used both regionally and in broader soil classifications. Both terms refer to the same soil type.

Let's briefly look at the other options to understand why they are incorrect:

• Red and yellow soil: These soils develop on crystalline igneous rocks in low rainfall areas and are different in composition and properties from Regur soil.
• Laterite soil: Laterite soil develops in areas with high temperature and high rainfall, resulting from intense leaching. It is distinctly different from Black soil.
• Alluvial Soil: Alluvial soil is deposited by rivers and is found primarily in the Northern Plains and coastal regions. It is different from the volcanic origin of Black/Regur soil.

Therefore, the alternative name for Regur soil is Black soil.

Revision Table: Key Soil Types in India

Additional Information: Properties of Black Soil (Regur Soil)

Black soil, or Regur soil, possesses several unique properties that make it suitable for certain crops and challenging for others. Understanding these properties is crucial for agriculture.

• Colour: Typically deep black to grey.
• Composition: Rich in clay material, which gives it high moisture retention capacity. It is rich in nutrients like calcium carbonate, magnesium, potash, and lime, but generally poor in phosphoric content.
• Texture: Clayey texture.
• Moisture Retention: Excellent capacity to hold moisture, making it beneficial for rainfed crops like cotton.
• Behaviour with Water: Swells and becomes sticky when wet; shrinks and develops wide cracks when dry. This characteristic is known as 'self-ploughing' as the cracks aid in aeration.
• Formation: Believed to be formed due to the weathering of basalt rock material from volcanic eruptions in the Deccan Trap region.

These characteristics highlight why Regur soil is a distinct and important soil type in India, primarily known by its colour as Black soil.