Mineral and organic fertilizations (NPK, NK+organic matter and NPK+organic matter) were applied to Orthox soil in three native plantations of coconut (Caaporã, Cabedelo and Santa Rita) localized in the Coast area of the Paraíba State (Brazil). Each plant, respectively, received 0.40 kg of N, 0.18 kg of P, 1.20 kg of K, and 20.00 kg of an organic matter (manure). The application of mineral and organic fertilizations increased the coconut yield. In Caaporã plantation, the increment of yield by the addition of organic matter is relationed with the application of Phosphorus in the soil.