Q. Which of the following soil is called as a “self – ploughing” soil?
Explanation: The black soil is generally clayey, deep and impermeable. They swell and become sticky when wet and shrink when dried.
- So, during the dry season, these soils develop wide cracks. Thus, there occurs a kind of ‘self-ploughing’.
- Because of this slow absorption and loss of moisture, the black soil retains the moisture for a very long time, which helps the crops, especially the rain fed ones, to sustain even during the dry season.
Source: NCERT – Fundamental of Physical Geography