Several methods of creating high yield of towel gourd in greenhouse

First, the selection of varieties. Greenhouse towel gourd should choose varieties with exuberant plant growth, cold tolerance and strong adaptability, such as cylinder towel gourd. Second, soil preparation and fertilization. Before sowing, combine ploughing and turning, apply more than 5000 kg of high-quality barnyard manure per mu, after leveling and raking, trench along the planting line, and then apply 50 kg of superphosphate, 25 kg of potassium sulfate, or 100kg of rotten cake fertilizer per mu; then close the ditch and ridge, ready to plant. Third, sowing time and cultivation methods. Towel gourd in greenhouse can be direct seeded in mid-October and can also be raised and transplanted. Cultivation methods generally use ridging size planting, large row spacing of 70 cm, small row spacing of 60 cm, plant spacing of 30 cm, 3400 plants per mu. Fourth, sowing and raising seedlings. Soak the seeds in 50 ℃ 60 ℃ lukewarm water for 10 minutes before sowing, soak them for 24 hours after cooling, wrap them in a mixed cloth and place 28Mu32 min for sprouting, rinse with clean water once a day, and sow seeds when most of the seeds are sprouting. When sowing, pour enough bottom water first, cover the soil 1.5 cm after sowing, the direct seeding field can be ditched and sowed on both sides of the ridge, and the seedlings can be unearthed in 4 days. When the seedlings grow to 2 true leaves, the seedlings can be interseeded in the direct seeding field and transplanted in the planting field, leaving only one strong seedling in each hole. Fifth, inter-shed management. 1. Adjust the temperature and light. Towel gourd requires a higher temperature in the whole growth period, the optimum temperature for growth is 20 ℃ 24 ℃, the optimum temperature for fruit development is 24 ℃ 28 min, the growth is slow at about 15 ℃, and the growth is inhibited when the temperature is lower than 10 mol. During the management, the temperature in the greenhouse was kept at 25 ℃ 30 ℃ during the day and 18 ℃ at night. Before the towel gourd is drawn, the sunshine time can be properly controlled by grass gourd to promote the growth of stems and leaves and the differentiation of female flowers. In the flowering and fruiting period, the grass should be opened at the right time and make full use of the sun to increase the temperature. 2. Watering and topdressing at the right time. Towel gourd seedling stage water demand is not large, depending on the soil moisture suitable to irrigate small water 1ml twice, when the vine grows to about 5cm, combined with re-cultivation of soil, per mu topdressing 30 kg of potassium dihydrogen phosphate, watering once. After blossom and fruiting, the water is usually watered once every 8 days, and 5 kilograms of urea is applied per mu. 3. Set up and bind the vine and adjust the plant. The stem of towel gourd can be up to 8 meters long, and it needs to be built when the vine grows to about 25 centimeters. In order to reduce the space occupied by the frame pole and sunshade, iron wire or nylon rope are generally directly tied to the greenhouse bracket to form a single-row vertical frame, the top is not crossed, and the vine is drawn vertically according to the original planting spacing and density. After the vine is on the shelf, 5 leaves are tied up every 4 times, and the "S" shape binding method can be used. 4. Protect flowers and fruits. Painting flowers with 2.4 Mel 4D can reduce the drop of flowers and significantly increase the rate of fruit setting. When the temperature is high, the concentration is 20 × 10 ~ (- 6), and when the temperature is low, the concentration is 30 × 10 ~ (- 6). The brush can be applied to the stigma and the base of the Corolla, or the flowers can be dipped directly in the medicine solution. The smearing time should be around 8: 00 a. M. 5. Disease and pest control. The main diseases of towel gourd are anthracnose, blight and Botrytis cinerea, which can be controlled by carbendazim, chlorothalonil, carbendazim and other pesticides. The main insect pests are melon aphid and whitefly, which can be controlled by fish rattan essence, prochloraz, etc.