Explanation:

Refer to the map given in previous answer to see the extent of black soil in India.
Due to presence of fine clayey particles, the moisture retention capacity of black soils is so high that it becomes sticky and difficult to work upon when wet. But this water retention capacity is a boon as it helps the crops survive the breaks in the monsoon season. During summers, the soil becomes dry and develops wide cracks that are good for aeration of the soil and helps in maintaining its fertility. The black soil is ideally suited for cotton cultivation and now sugarcane is also extensively cultivated in black soil regions of the peninsula.
The black soils are of volcanic origin and hence are very rich in metallic minerals. But they are deficient in nitrogen, phosphorous and organic matter.