Emerald blueberry was developed in America. The tree body of this variety is relatively thick, and the crown diameter is about 1. 1 m. Blueberry fruit is big and hard, but it tastes sweet, slightly sour and has a strong fragrance. Emerald blueberry ripens earlier, has higher yield, better fruit quality and stronger cold resistance and pest resistance. The tree is strong and half-open. Four-year-old fruit can grow 1.5 meters, the fruit is big and green, the pedicel mark is small and dry, and the hard fruit tastes sweet and slightly sour. Mature early and concentrated, mature in Florida from late April to May, which is the off-season of blueberry fresh fruit market. With high yield, strong ability and strong insect resistance, it is an excellent variety of Nangao and has great development prospects. Planting of Emerald Blueberries: According to the ecological adaptability of blueberries, the suitable planting area (that is, the area with suitable climatic conditions) is determined first, and then the planting plot is selected. When choosing planting plots, we must first understand or determine the pH of the soil; Secondly, we should try to choose places with loose soil, organic matter and good irrigation and drainage conditions. If it is mountainous, the sunny slope should be chosen as far as possible, and a 2m wide terrace should be built when it is greater than 15. Site types can be transformed into barren hills and low-yield pine forests, and sloping fields can also be transformed into farmland. Cross-pollination can make the fruit setting rate of high cluster blueberry between 67 and 82. Therefore, in blueberry planting, at least two species should be arranged to pollinate each other to improve the yield and quality. Generally, the ratio of pollinated trees is 2 ~ 3: 1, that is, 2 ~ 3 rows of main varieties and/kloc-0 rows of pollinated varieties.