Winged bean, also known as wing bean and bean, is a kind of legume with very rich nutrition. Its soft bean paste has crisp and delicate taste, high nutritional value, strong health care function, and its young leaves and flowers can be eaten as vegetables and seeds. And underground roots can be used for food, stems and leaves are excellent feed and green manure. 1. Environmental requirements The suitable temperature for growth is 20-25°C during the day and 10-15°C during the night. It is a short-day crop that is sensitive to sunlight. Under long-day conditions, it can easily cause stems and leaves to grow long, but not flowering. Sensitive to moisture, drought during flowering can cause flowers to fall out; in the loose and fertile sandy loam soil can obtain the best yield and quality of leeks and roots, not to salt and alkali. 2. The winged beans are not frost-tolerant during the cultivation season, so the sowing date should be after the late frost and the temperature should be above 20°C. April in North China is appropriate. If covered with plastic film can be advanced 7 to 10 days. For early harvest in northern China, early maturing methods are generally used. Generally, they are planted in windbreak impotence or solar greenhouse in late February to early March, and planted in mid-April. 3. The species selection is divided into two types: green pods and deep purple pods. The medium and early maturity varieties imported from Indonesia are better. The seedling transplanting method uses 0.4 0.6 0.6 kg per 667 平方米 m2 and the live broadcasting method is 0.75 kg. 4. Sowing seedlings Winged bean can be propagated by seeds or roots, and is generally seed-based. Seed drying before sowing 1 to 2 days, and then soaked in warm water 55 °C for 15 minutes, after soaking with water for 24 hours, remove, wrapped with wet gauze, germination at 28 ~ 30 °C conditions. After the seeds are exposed, they can be sowed and sowed in a peat-based nutrient solution at a temperature of about 25°C, which is appropriately reduced after emergence. Seedling age 25 to 30 days, when there are 3 to 4 leaves can be planted. When using tuberous roots, the small, medium-sized roots can be planted in caves with their heads facing up and covered with plastic film. This method germinates early and can result in early flowering. 5. Planting cultivated fields Apply 3,000 milligrams of comminuted finely ground organic fertilizer per 667 square meters. The ridge distance is 80 to 85 cm, and the hole is opened by 60 to 70 cm from the hole, 2 plants per hole, 2300 to 2500 plants per 667 m2. Immediately after planting, water and cover the mulch. Two to three seeds per hole were planted directly, and one strong seedling was selected after the hatch. It is best to cover the film. Wing bean spacing is very large, early intercropping can be made for some dwarf, shade, fast-growing leaf vegetables, such as rape, spinach and so on. 6. Field management During the seedling period, cultivating tillage twice and combining weeding. After vines are pumped and then cultivated 1 or 2 times, when the branches and leaves grow vigorously and the plants are sealed, the cultivator is stopped to prevent the roots from being damaged. However, the soil should be cultivated and the height should be 15 to 20 cm in order to facilitate the formation of underground roots. At the time of budding, 500 kg of ash was applied per 667 square meters, and 30 kg of superphosphate was applied to the plant. During the flood season, spray 0.5% potassium dihydrogen phosphate or 1000 lightlire seaweed every 7-10 days. After every 7-10 days, apply 15% compound fertilizer and apply 15-20 kg per 667 square meters. Winged beans are hi moist and should be often watered to keep the soil moist and prevent drought. In spring and summer, it usually takes 3 to 5 days and 1 water. The rainy season should be promptly drained and flooded. Suspend vines with bamboo rafts or plastic vines to secure the plants. Racks should be tall and firm, and artificial vines should be introduced to avoid intertwining between the plants. The amount of pods should be the first to reach the maximum. Pick up the top of the heart to promote low-level branching, and later remove the old leaves and lateral vines in time to increase the scab rate. When the plant height is about 2 meters, branches below 80 cm should be cut to facilitate ventilation. 7. About 14 days after flowering and harvesting, the pods are green and soft, and can be harvested without woodification. Generally, they are harvested 3 to 5 days, and the harvest should not be old. The dried beans matured 45 days after flowering, and their young leaves and flowers were harvested at any time, and the roots were harvested in the fall season. 8. Pest Control The common pests are aphids and pods. In the early stage, 40% dimethoate can be used for 1000 times; 70% cannulation can be used to control 2500-fold dimethoate spray. The common diseases are virus diseases, and the locusts should be controlled in time. In the early stage of the disease, antitoxic agent No. 1 can be sprayed 300 times, once in 10 days, and sprayed 3 to 4 times.
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