Agriculture in Ghana consists of a variety of agricultural products and is an established economic sector, providing employment on a formal and informal basis. It is represented by the Ministry of Food and Agriculture. Ghana produces a variety of crops in various climatic zones which range from dry savanna to wet forest which run in east–west bands across Ghana. Agricultural crops, including yams, grains, cocoa, oil palms, kola nuts, and timber, form the base of agriculture in Ghana's economy. In 2013 agriculture employed 53.6% of the total labor force in Ghana.