Beijing Daxing is known as the hometown of watermelon in China. Daxing Watermelon has long been a trusted brand of Beijing people.

Daxing District is the main watermelon producing area in Beijing. The superior natural environment, the rich cultivation experience of the melon farmers and the rich historical heritage have created the “Daxing Watermelon”, a national famous agricultural product brand. Since the first watermelon festival was held in Daxing District in 1988, it has been successfully held for 26 sessions, which has played a very good role in promoting the application of Daxing watermelon new varieties and new technologies, the development of the industry and the promotion of the brand. In 1995, at the naming conference of the first batch of 100 Chinese specialties, the Ministry of Agriculture awarded the title of “Hometown of Watermelon in China” in Panggezhuang Town, Daxing County, Beijing. In 2007, Daxing Watermelon was protected by the National Geographical Indications Product. Daxing watermelon has a long history of planting. In the Liao Taiping years before the millennium ago, Daxing has a history of cultivating watermelon. Daxing watermelon has a smooth appearance and a round shape. There are 16-17 deep green snakes on the light green background. The skin is thin and tough, the color is bright red and soft, the meat is crisp and sandy, the fiber is small, there is no void, and it is not sloppy. The single melon weighs 4-5 kg ​​and the sugar content can reach 10-13%. Sweet and good quality, it is a medium and high-grade variety. It is widely cultivated and has a high fruit setting rate. It is suitable for cultivation in the traditional way of Beijing and has a high commercial value. Daxing is located in the southeastern suburb of Beijing, on the east side of the Yongding River. To the south of Tiangongyuan Village in Beijiao Village, 10 townships represented by Pangezhuang, the distribution area of ​​watermelon is relatively concentrated, which is the main producing area of ​​watermelon in the county. The area is located in floodplain and alluvial plains, mostly sandy soil. In the vine, flowering and melon stages of watermelon from May to July, the optimum temperature is between 18-35 °C, and the monthly average temperature is 20-26 °C, and the extreme maximum temperature is above 35 °C. The water requirement of watermelon in the middle and late June is about 47% of the total water demand. At this time, the monsoon rain has come. In addition, the temperature difference between day and night is large, and the difference in the growing season of watermelon can reach more than 10 °C. Not only the natural conditions are conducive to the growth of watermelon, but also the agricultural technicians and thousands of melons have rich experience in planting melon technology. The watermelon is mainly known for its sand, sweetness and crispness. It is quite famous in Beijing and Tianjin. During the annual watermelon festival in Daxing District, the contests of the townships and farmers have attracted many Chinese and foreign guests. The product features a smooth appearance, a round shape, and 16-17 distinct dark green snake prints on a light green background. The skin is thin and tough, the color is bright red and soft, the meat is crisp and sandy, the fiber is small, there is no void, and it is not sloppy. The single melon weighs 4-5 kg ​​and the sugar content can reach 10-13%. Sweet and good quality, it is a medium and high-grade variety. It is widely cultivated and has a high fruit setting rate. It is suitable for cultivation in the traditional way of Beijing and has a high commercial value. The nutritional value of watermelon, also known as water melon, cold melon, summer melon, can be called the "king of melon", because it was introduced from the Western Region in the Han Dynasty, it is called "watermelon". Watermelon tastes sweet and juicy, refreshing and quenching thirst. It is a good summer fruit. In addition to fat and cholesterol, watermelon contains almost all the nutrients needed by the human body. It is the most nutritious, pure and safest food. Efficacy Watermelon can clear away heat and relieve thirst. Watermelon contains a lot of water. In the case of acute fever, fever, thirst and sweat, and irritability, eat a piece of watermelon that is sweet, sandy and full of water. The symptoms will improve immediately. In the treatment of nephritis and lowering blood pressure, watermelon is a good doctor among fruits and vegetables. It contains sugars and salts that diure and eliminate kidney inflammation; proteases convert insoluble proteins into soluble proteins that increase the nutrition of patients with nephritis; they also contain substances that lower blood pressure. After eating watermelon, the amount of urine will increase significantly, which can reduce the content of bile pigment, and can make the stool smooth, which has a certain effect on the treatment of jaundice. Fresh watermelon juice and fresh melon skin can increase skin elasticity, reduce wrinkles and add luster. Therefore, watermelon not only has a good edible value, but also a women's efficient and economical beauty salon. If you want to be radiant, don't let go of watermelon.

Daxing watermelon quality technical requirements (a) varieties. Four medium-fruit type watermelon varieties of Jingxin No.1, Jingxin No.2, Jingxin No.3 and Hangxing No.1. (2) Site conditions. Sand without heavy metal pollution, pH 6.0 to 8.5, organic matter content not less than 1.0%. (3) Cultivation management. 1. Watermelon grafting seedlings: use gourd rootstocks. The grafted seedlings should have 3 to 4 true leaves when they are out of bed, and the scion is not long; the leaves are dark green, disease-free and pest-infested; the base of the stem is thick; the roots are developed. 2. Site preparation and fertilization: no more than 45 tons of fully decomposed organic fertilizer per liter, N: 300 to 360 kg; P2O5: 190 to 220 kg; K2O: 120 to 180 kg. 3. Colonization: The planting period is from late March to late April, and the planting density is 9000 to 12,000 plants per hectare. 4. Water and fertilizer management: When the watermelon fruit grows to the size of the egg, pour the expanded melon water, and apply N: 60 to 75 kg per liter of water, K2O: 75 to 110 kg. Stop watering one week before picking melon. 5. Pruning: Three vines are pruned, except for the main vine, which retains two side vines at the base and one melon in the second or third female flower. 6. Pollination: Normally open male flowers are selected from 7:30 am to 10:30 am, and female flowers are artificially pollinated. (4) Harvesting. 1. Harvesting period: from female flowering to fruit ripening, the effective accumulated temperature is 700 °C to 900 °C, about 28 to 30 days. When ripe, the peel is hard and smooth, showing the inherent skin color of the variety, and the umbilical and fruit pedicles are concave and contracted inward. 2. Harvesting technical requirements: Take a piece of melon on the fruit when picking melon; prohibit harvesting in rainy days; harvest in the evening in high temperature season; take it lightly during picking and shipping. (5) Quality characteristics. 1. Sensory characteristics: (1) Fruit type: medium fruit type, fruit round or high round; (2) single melon weight: 4 to 8 kg; (3) peel: peel thin and crisp, thickness not exceeding 1.2 cm, skin The color is covered with a dark green strip on the green bottom; (4) ochre: pink to pink, bright color; (5) texture and flavor: melon crispy sand, sweet and juicy, less fiber content, refreshing. 2. Physical and chemical indicators: (1) soluble solid content: no less than 11% at the center; no less than 8% at the edge; (2) ratio of sugar to acid: 45 to 50; (3) lycopene: not less than 3.0 mg /100gFW; (4) Vitamin C: not less than 6.0mg / 100gFW.

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Producers within the scope of protection of Daxing Watermelon Geographical Indication Products may submit an application for the use of “Special Marks for Geographical Indication Products” to the Quality and Technical Supervision Bureau of Daxing District of Beijing Municipality, which shall be approved by the General Administration of Quality Supervision, Inspection and Quarantine.