Primitive subsistence agriculture includes shifting cultivation and nomadic herding:Shifting cultivation: This cultivation is practised in the thickly forested areas of Amazon basin, tropical Africa, parts of Southeast Asia and Northeast India. A plot of land is cleared by felling the trees and burning them. The ashes are then mixed with the soil and crops like maize, yam, potatoes and cassava are grown. After sometime, the land is abandoned and the farmers move to a different place.
Nomadic herding: Nomadic herding is practised in the semi-arid and arid regions of Sahara, Central Asia and some parts of India like Rajasthan and Jammu and Kashmir. In this type of farming, herdsmen move from place to place with their animals for fodder and water along defined routes. Sheep, camel, yak and goats are the herding animals. They provide milk, meat, wool, hides and other products to the herders and their families.