As the most recent tea producing continent, African countries have been able to build on the experience of other producers. As a result, Africa is now a major force in world tea, producing teas of high quality and good bright colour which are used for blending all over the world. Tea producing countries in Africa include Kenya, Malawi, Tanzania, Zimbabwe and South Africa producing about 30% of world export. Nitrogen fertilizers are used to accelerate the growth of the tea plant and as a result of increased yields.