How did tribal societies practise jhum cultivation?

The tribal society practiced jhum cultivation in the Northeast regions of India. First, the forest land is cleared of trees and vegetation by setting it on fire. The ash remained after burning acts as a fertilizer for the soil. The seeds are scattered on the land instead of sowing. When the crop is ready, it is harvested, and the tribal groups move to another part of the area, leaving the previous land barren for a couple of years.