Typically: Vo Nhai district's custard apple area is about 450 hectares; logan growing areas of Pho Yen city and Dai Tu district are about 500 hectares; The grapefruit growing area of Dai Tu and Vo Nhai districts are about 500 hectares... With the goal of increasing income from fruit trees, the province is encouraging people to continue expanding the area of planting a number of trees with high economic value. At the same time, continue to develop concentrated fruit production areas in a safe direction, associated with traceability and product branding.