Question

Black soils are most suited for the

• A. Conservation Agriculture
• B. Dry land agriculture
• C. Temperate agriculture
• D. Water conservation agriculture

Hint:

Black soils (Vertisols) contain montmorillonite clay, which has a very high water-retaining capacity. This allows the soil to store moisture during the monsoon and support crops during dry spells, making it ideal for dryland agriculture.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Black soils, also known as Vertisols or Regur soils, are characterized by high clay content, specifically smectite (montmorillonite) clay minerals.
These soils exhibit strong swell-shrink properties, forming deep cracks during dry spells and swelling when wet.
Because of their mineral composition, black soils possess a very high water-retaining capacity.

Step 2: Detailed Explanation:
In dryland agriculture (rainfed farming), crops rely entirely on stored soil moisture due to the lack of artificial irrigation.
The high clay content of black soils allows them to store large quantities of moisture during monsoon rains.
This stored water is then slowly released to crops during dry periods, allowing crops to mature even under rainfed conditions.
Furthermore, the self-ploughing nature of black soils (due to soil falling into deep cracks during dry spells) helps maintain soil structure and aeration without extensive mechanical tillage.
These physical properties make black soils highly suitable for dryland agriculture in semi-arid regions of India, such as the Deccan Plateau.
Therefore, dryland agriculture is the primary agricultural system suited for these soils.

Step 3: Final Answer
Black soils are most suited for dryland agriculture due to their high water-holding capacity.