Nigeria has a population of over 186 million.
The Nigerian economy is one of the largest in Africa and has been primarily based on the petroleum industry since the 1960s.
About two-thirds of all Nigerians obtain a living from agricultural production. Most are small-scale subsistence farmers. Root crops—notably yams, taro and cassava—are the main food crops in the south, while grains and legumes—such as sorghum, millet, cowpeas and corn (maize)—are the staple crops of the drier north. Rice is also an important domestic crop.
46-61% of the food energy consumed in Nigeria comes from crops that are not native to the region. Most of these plants’ diversity is found elsewhere on the planet.