Cucumber is a kind of vegetable that grows in the sunlight greenhouse at present. Here are some key measures for high-yielding cultivation of cucumbers in the greenhouse: First, select the fine varieties. Selection of improved varieties is the primary measure for high-yield cultivation of cucumbers. In the cold winter season, cucumbers produce more rain and snow, less light, and lower temperatures. Therefore, the use of cold resistance, weak light resistance, strong disease resistance, early maturing and high yield, low root-knot stage, and melon size must be used in production. , Variety is good, growth is strong but not easy to grow, and meet the market consumption habits. At present, the species often used in our county are mainly cucumbers of the thorny species, such as: Changchun Mimi, Xintai Mickey, Shandong Mitis, and Jinchun No. 3. Second, the use of grafted roots. Greenhouse cucumber production often uses black seed pumpkin as rootstock for root grafting. This not only improves the stress resistance of cucumber plants, but also enhances the disease resistance of the plants. And because the pumpkin root system is developed, the absorption capacity of the whole plant is enhanced, thereby increasing the yield of the whole growth period. There are many methods for grafting and root exchange. Because the method of connection and connection is simple and easy to operate, the survival rate of grafting is high, and the connection method is used for production. In general, cucumbers are planted 5 days or so earlier than the rootstocks. When the first leaf of the rootstock is the size of the bean, the cotyledons of the cucumber are flat, and the size of the first true leaf is the size of the rice, the grafting is most suitable and is easy to survive. Third, timely sowing, nurturing strong seedlings. Greenhouse cucumbers are usually sown at the end of September and early October. Premature sowing, the temperature, ground temperature is high, the plants are prone to disease, too late sowing growth period, affecting yield. Cultivating strong seedlings is an important factor in the high yield of cucumber. Generally soaked with warm soup soaked, after the nursery with nutrients, after the high temperature and low temperature management methods to increase nutrient accumulation. Before planting, it is also necessary to strengthen the seedlings at low temperature to improve the cold resistance of the plants. Generally, the standard of cucumber seedlings grafted seedlings is: seedling age 30-35 days, seedlings 3-4 true leaves, plant height 12-15 centimeters, short internodes, thick stems, short petiole, dark leaves, and luster. Fourth, give enough fertilizer. The characteristics of greenhouse cucumber fertilization is to reapply basal fertilizer and topdressing fertilizer. Generally 5000-10000 kg of organic fertilizer per acre base, 30-40 kg of diammonium phosphate; top dressing with 1000-1500 kg of manure, 140 kg of diammonium phosphate, 70 kg of urea, usually with water irrigation application. The topdressing time is generally controlled when the root melon grows to 10 centimeters and begins to chase. Once every 20-30 days, topdressing 1 times, 10-15 days in the middle and late period, top dressing 1 times, mu urea 10-15 kg or large manure 500 kg. Fifth, timely prevention and pest control. Pests and diseases are also a major factor affecting the high yield of cucumber. Therefore, prevention and treatment of pests is a key to winning high yields of cucumbers. Production must adopt comprehensive prevention and control measures to prevent the occurrence of pests and diseases. China Agricultural Network Editor