In the tropical wet zone of Africa, occurring close to the equator in West and Central Africa and eastern Madagascar, dense natural vegetation requires periodic clearing and burning to obtain plots for cultivation. Both small-scale and plantation agriculture are practiced in the zone, but small-scale production predominates for almost all export crops as well as food crops. Major export crops include coffee, oil palms, and cacao, and important subsistence food crops include cassava, yams, okra, plantains, bananas, and legumes. In most areas, farmers grow both export crops and subsistence food crops. Most of Africa’s exports of coffee, cacao, and oil palm products come from small-scale producers in this region. In some areas of Liberia, Côte d’Ivoire, Ghana, and Nigeria, plantations using modern mechanical equipment and artificial fertilizers have been established. The most notable example is the extensive Firestone rubber plantation of Liberia, which produces most of the country’s rubber crop. Other major successful commercial undertakings include coffee growing in Côte d’Ivoire and cacao production in Ghana all within the tropical wet zone of Africa.