Songjiang District Agricultural Science and Technology Demonstration Base has been explored, practiced and summarized in recent years, and the continuous improvement of watermelon stand frame cultivation technology has made it easier and simpler to operate. The main steps are now described as follows: 1. Nursery and seedling management are the same as conventional climbing methods. In raising seedlings, we should consider that the density of stand erection is twice as much as that of ordinary climbing ground, and the number of nursery seedlings should be doubled correspondingly. Second, transplanting 1. Apply basal fertilizer, do a good job. Before deep plowing in winter, the total maturity of organic fertilizer is about 1,500 kilograms per mu, and high potassium fertilizer is 80 kg/mu in the 15 days before planting. The stand cultivation is divided into 4 pods for each standard shed, with a ditch depth of 25 cm and a width of about 30 cm. A shed is placed 15 days before transplanting, and the film is covered to improve the ground temperature. 2. According to the condition of seedlings (general order 35 days, 2~3 true leaves), grasp the cold tail warmer and grab sunny transplants. In the morning of planting, the planting hole was excavated. The size of the hole was slightly larger than that of the nutrition carcass, and the depth was slightly deeper than the carcass to facilitate the operation. 3. Density: Small melon cultivars of 1200 strains/mu. More than 1 times more than climbing cultivation. 4. Transplanting: First cover the mulch in the greenhouse (including full coverage of the operation ditch). Then the hole is planted at 25-30 cm intervals. When planting, the surface of the nutrient bowl should be about 2 cm lower than the surface of the crop. The orientation of the cotyledons should be parallel to the direction of the melon, and the nutrition body should be filled with fine soil around it, but it cannot be compacted. After planting and pouring roots, rooting water is prepared with 250 times polychloroprene, and the water temperature is about 20°C. After the above work is completed, it is necessary to catch a small shed in time to cover the film. Third, management 1. Within 7 days after transplanting, do not expose sheds, live trees, when the shed temperature rises to 30 °C, appropriate ventilation, reduce the humidity inside the shed, the main pre-cold protection, ensure that the shed temperature is not lower than 18 °C, Covers can be added at night. When the outside temperature is stable above 18°C, the small ring can be removed. 2. Keep pruning. Generally dominated by double vine pruning, leaving only a main vine and a robust branch, timely removal of invalid branches. The specific operation should be about 50 centimeters long and sunny afternoon. 3. Shelving; watermelon stand cultivation, should be in time to stay after the vines. Height is about 1.5 meters. Use bamboo as a stand, spaced at about 3 meters, and put lead wire on it. 4. The introduction of vines on the shelves. The double vines were introduced with twine and the extra branches were removed. The main varieties of cultivated watermelons in the early spring greenhouse in this area are the “early spring red jade†and “red small jadeâ€. In particular, "Rose in the early spring", if the growth potential is too strong, it is difficult to establish fruit in the 14th to 16th. After being cultivated on the stand, the nutrient transport is upward, which slows down the growth potential and makes it easier to set up fruit. This will increase production, improve morning market time, and achieve better economic benefits. 5. Pollination fruit set. General requirements of a vine. The position of the melons should be in the second female flower and the first female flower of the vine. The pollination time is usually around 7:00 am to pick the male flowers that were opened on the day, remove the petals, and gently apply the anthers to the stigmas of the female flowers, ending at 9 o'clock. . 6. Expansion fruit fertilizer management. When the watermelon grows to large eggs, it can be applied in time according to the condition of the seedlings. Generally, 20-30 kg of high-potassium compound fertilizer is used per mu. Acupuncture is the main method, and 0.5% potassium dihydrogen phosphate is sprayed once a week in combination with pest control. Expanded water should be considered soil moisture, the general operation of the ditch can be wet, if it is too dry, should be a small ditch irrigation 2 to 3 times to prevent cracking. Stop fertilization and irrigation 2 weeks before harvest. 7. Hang melons. When the watermelon grows to the size of the fist, it should be hoisted in time. Due to the stand cultivation, the trays should be lifted with a tray-type net bag, which can make the watermelon grow well, receive light evenly, and have good merchandise. Moreover, it has a uniform maturity, uniform sugar content, and is not harmed by underground pests. It is popular in the market and its price is more than 30% higher than that of climbing cultivation. Fourth, timely recovery of the melon seats about 35 days in the spring, about 30 days in the fall, watermelon can be harvested. The period of ripening can be determined by combining the time of artificial pollination to ensure the quality of the melon. Fifth, pest and disease prevention and general planting the same six new varieties introduction and cultivation characteristics 1. Little prodigy seedless watermelon, suitable for protective cultivation, green walnut texture, skin is very thin, round fruit, single weight 2.5-3 Kg, such as the cultivation of fruit in the fall, weighing 1.5-2.5 kg. Melon yellow, crisp texture, fine flesh, good quality, refreshing, sugar at about 11 degrees. Very precocious, flowering to mature about 25 days. The result is strong, thin and easily cracked fruit, preferably in protective cultivation. Cultivation in the greenhouse, crawling type per mu than the general variety can be reduced by 100 strains, that is, 500 strains / acre or so, leaving 3 vines per plant, leaving a fruit per vine. Stand-style cultivation of 800 per acre, leaving 3 vines per plant, 3 fruit, 3 per vine leave in the vertical stand cultivation, vines, 2 results, this can ensure that the fruit shape will not be too small and improve the yield. From the eighth quarter onwards, it is best to carry out artificial pollination. Because male flowers without seeds have no pollen, when planting, other seeded watermelon varieties are planted at a ratio of 5:1. The male flowers that were opened on that day are used as seedless melons. Female flowers pollinate and mark pollination time. The management after pollination is equivalent to that of conventional varieties. Pay attention to fertilizer and water management in the middle and late period, avoid drowning flood irrigation after drought, prevent fruit cracking, and early harvest can reduce cracking phenomenon. 2. The black casket and the black beauty are in the same series. They are born early in the middle and have strong fertility. The fruit has a long oval shape. The fruit skin is dark green with dark black markings. The peel is thin and tough. It is resistant to transportation. It weighs about 3 kilograms, dark red flesh and delicate meat. Juicy, center sugar is about 12 degrees. Adaptability, strong resistance, especially suitable for summer and autumn cultivation, in the case of continuous high temperature and drought in 2003, science and technology demonstration base stand cultivation, the normal growth results, the yield is equivalent to the black beauty planted all year round, reaching 1250 kg/mu. Cultivation and management are the same as conventional varieties.