What is Bhangar and Khagar?

What is Bhangar and Khagar?

Bangar and khaddar are two types of alluvial soil.
Bangar: It is an old alluvial soil and has higher concentration of kankar nodules. It is comparatively less fertile.
Khadar: It is a new alluvial soil and has less concentration of kankar nodules. It is more fertile.