Planting lotus roots with the top and side buds of lotus root has the advantages of saving quail species and expanding the propagation coefficient, and the yield is not much different from the field crops with seed pods as seedlings. If combined with a small shed to carry out heat preservation seedlings, sowing time can be advanced and the survival rate of seedlings can be improved. In the long-term production practice, we summarized a set of techniques for applying lotus seedlings and lateral buds as seedlings. First, build a shed. The materials used to build the shed can be made of plastic or bamboo wood materials according to local conditions. The span of the shed is 1.2-1.5m, and the height of the shed is 40-50cm. The plastic film for the shed film or the drip-free bead film can be used to reinforce the awning with a nylon rope. The shed can be reinforced with bamboo. The construction of the shed can also be changed depending on the specific circumstances. The principle of building sheds is the principle of keeping warm, good operation, and easy management. Farmers' friends can choose their own structures according to their own economic capabilities. 2. Seed preparation 1. Select a variety of varieties of lotus root varieties. Choose a variety that is more suitable for growth and consumption habits in the local area. At the same time, when selecting a species, select a robust bud with the characteristics of the species. Do not use or use less. If you want to use the application liquid after disinfection. 50% carbendazim WP can be used to disinfect water 500-800 times. 2, cut the top and side buds. After selecting a seed bud with a strong bud, cut the incision 2cm away from the bud at a bud with a bud, and treat the wound with a good disinfectant solution and place it in a cool, well-ventilated area to allow the liquid to dry. Disinfectant can be formulated with 50% carbendazim powder or 70% thiophanate-methyl wettable powder 800 times water. Third, nursery 1, bacteria bed preparation. Seedbed land should be chosen for sheltering from the sun, which is conducive to drainage and irrigating fields. Before the planting, the farmyard manure that is decomposed is 2000-3000kg/667m2, so as to facilitate the heat preservation of the plots. 2, sowing. In the local temperature is stable above 10 °C to sow, generally the time is in late February to early March, when sowing should pay attention to classification, the buds are planted in a field, small buds in a field, plantlets The row spacing is 5cm10cm, which facilitates future field management. 3, seedling management. After planting seedlings, keeping the temperature is the key to ensure the survival of the seedlings. In the early stage, due to the low temperature, the growth is slow. The temperature below 15°C should be covered with plastic film and the temperature should gradually increase in the middle and later stages. When the temperature is higher than 25°C, the film must be removed. Ventilation prevents the leaves from being burnt by the film at high temperature. At the same time, the high-temperature and high-humidity diseases gradually occur. Therefore, it is necessary to pay attention to disease prevention and find that a small number of diseases should be promptly prevented and prevented from spreading. Fourth, colonization. When the seedlings grow to 3 leaves and 1 whip, the field can be planted. Before the colonization and emergence, spray a disease-preventing liquid on the seedbed. Use 50% carbendazim powder 1kg mixed with fine soil or sprinkle 70% thiophanate-methyl 1000 times. liquid. Fifth, field management. For the lotus root planted in Daejeon, the time for planting should be based on the climatic conditions of each place. The daily average temperature is above 15°C, 2 seedlings per hole are planted to ensure full seedlings, and the row spacing is 0.5m1m. Attention should also be paid to cultivation management. 1, top dressing fertilizer. When the first leaves are pulled out, 667m2 of field will be applied with 15-20kg of urea; when the leaves are stopped, 30-40kg of urea, 30kg of potash, or 50-60kg of compound fertilizer will be applied per 667m2; Foliar fertilizer or potassium dihydrogen phosphate, can promote body fat. 2, rational use of water. Spring lotus root uses "light → deep → shallow" irrigation method. Low temperature pre-growth water layer should be shallow, which will help increase the temperature of the field block. Before planting till the leaves are extracted, the water layer should be kept at 5-10cm; when the leaf is taken out from the middle stage of growth to the appearance, the water will grow vigorously. The layer is gradually deepened to 20cm; after the growth, the yellow leaves from the leaves to the leaves are suitable for about 5cm in the water layer of the pods to promote whole body hypertrophy. 3, pest control. Lotus root disease mainly includes spoilage disease and brown spot disease. It can be used as soon as possible by 77% killable WP 800 times solution or 50% DT (copper ferric acid copper) 600 times solution. Sixth, compared with the traditional seed planting 1, advantages. It can better maintain the characteristics of the original varieties and can effectively prevent the spread of diseases such as spoilage and brown spot. Saving seed cost, saving about 250kg per 667m2, and multiplying the propagation coefficient by nearly 1 time. 2, shortcomings. The early seedling growth is slower, the seedling period is longer, and the survival rate of the seedlings is low. 3, to solve the countermeasures. The time for raising the seedlings is appropriately advanced, and the nursery is combined with protective measures to promote heat preservation, and the base fertilizer is increased to maintain the soil temperature of the decomposed farmyard fertilizer.