April to November for the fruiting period, 30-40 days after the flowers ripe, a single fruit weight of 500-1000g, planted in the second year after the planting of more than 20 fruits per column. In the second year after planting, each column produces more than 20 fruits, and in the third year, it enters the fruitful period.
The dragon fruit is a tropical, subtropical fruit, its cultivation technology is simple. Sex like warm and humid, shade and barren, the optimal temperature for growth of 25 ~ 35 ℃, low temperature higher than 5 ℃ can be planted in the open air. The soil requirements are not strict, flat land, paddy fields, slopes or dry land can be cultivated, in fertile, well-drained neutral or slightly acidic sandy red soil or loam grows well, with aerial roots, roots more strong, vitality is extremely exuberant. Propagation methods mainly use cuttings and grafting, planting general row spacing 6~7m, plant spacing 3~4m, per 666.7m224~38 holes, 3~4 plants per hole. Appropriate application of some organic fertilizer in the management process, pay attention to irrigation in summer high temperature and drought, pay attention to drainage in rainy days, prevent waterlogging, avoid bacterial and fungal infections. Generally there are few pests and diseases, even if there are a small number of occurrences, the use of some highly efficient and low-toxicity pesticides can be treated and prevented [6]. The flowering and fruiting period of dragon fruit is from May to November every year, and the fruit can be harvested when it gradually changes from green to purple-red color.
The development of dragon fruit in the high-fat, high-calorie, high-protein food structure leading to high blood fat, high blood sugar patients are increasing today, there is a double effect of beauty and health care of dragon fruit, can be said to be the best choice for people. Dragon fruit in addition to raw food, its flowers and fruits can be processed into a variety of nutritious health food, such as dragon fruit juice, sauce, preserved and canned drinks, etc., unique flavor. Flowers and stems can be used in medicine, if you can extract the flowers and stems of the active ingredients processed into capsules, pills and other medicines, for the treatment of hypertension, diabetes is very effective. In addition, the stem of dragon fruit is the ideal rootstock for precious cactus grafting, can be crabapple orchids, all kinds of weird cactus ball grafted on it, made into a home ornamental gardening plants, and the flowers and fruits of dragon fruit itself is very brightly colored, so it can also be used as a bonsai and garden cultivation directly ornamental.
The history of dragon fruit cultivation in our country is relatively short, at present only in Taiwan, Hainan, Guangxi, Guangdong, Fujian and other parts of the provinces and regions emerging, the cultivation area is still very limited, this year, the market price of Chaozhou 6 ~ 10 yuan / a, the formation of a huge gap between the supply and demand, to sum up, the prospects for the development of dragon fruit is very broad.