Vietnam's major agricultural areas are the Red River delta, the Mekong River delta and the southern terrace region. Vietnam is the world's largest producer of cashew nuts, the largest producer of black pepper and the second-largest rice and coffee exporter. Its other primary exports include tea, rubber and fishery products. Rice is grown mostly in the Red and Mekong river deltas. There are many plantations of banana, coconut, and citrus trees, most of them found in the Mekong delta and the southern terrace regions. Coffee and tea are grown in the central highlands. The production of rubber occurs in the central highlands and southern terrace regions. Fields, groves and kitchen gardens throughout Vietnam include a wide variety of fruit trees such as banana, orange, mango, jackfruit and coconut.