What should you pay attention to when growing sweet potato? 1. Select high-quality early-maturing varieties such as Shangqiu 52-7, which is resistant to fertilizer and adaptability. It can be harvested 90 days after planting, and the yield of 667m2 is 2500-3000kg. Potato block spindle type, red-skinned pink meat, uniform size without burdock root, good commodity, 3-4 sweet potatoes per plant, early potato, swollen fast; upper potato vines shorter, average branch 1.3, long Lm or so. 2, brewing hot matter germination, seedling seedling germination and seedling raising is an important part of the whole off-season cultivation, but also the key to ensuring the success or failure of continuous cropping. The nursery time is appropriate early in mid-December. At the beginning of the next year, germination is carried out with simmered hot stalks such as sirloin, or mantle, etc. In the first and middle of the month, the seed potatoes that are germinated are transplanted into the nursery seedling bed. The seedbed is protected by a double-layer film, and some decomposed pig pens (or straw) and compound fertilizer are applied in the bed. The seed potatoes are arranged neatly, the buds are facing upwards, and a layer of straw is placed on the floor. After spraying, a layer of mulch is laid, and a film is placed on the arch to increase the temperature of the seedbed. When the potato vines arch the straw, the seedlings are punched in the flat mulch film in time to avoid burning the tender seedlings at high temperatures on sunny days. In the first month of the seedbed, water is sprayed once every 7 days, and after 1 month, water and fertilizer are sprayed twice a week, such as rare human excrement or 0.5%-l% compound fertilizer solution to promote the growth of potato seedlings. The seedlings began to be cut and cut in the seedbed for about 2 months. Each batch was cut every 7-10 days. The water and fertilizer were sprayed twice a week from the first cutting, and the concentration was appropriately increased to ensure the nutrient supply of the regenerated seedlings. 3, timely insertion, reasonable close planting in April and mid-term is the seedlings transplanted in a suitable period, at this time in early spring and early spring, the temperature is basically stable, which is conducive to seedling rooting seedlings. The field should choose double-season paddy fields with convenient drainage and good fertility. In the winter of last year or early in the year, it will be ploughed and sun-dried at the beginning of the year. The slings are 85-90cm wide. In April and mid-April, according to the seedling emergence rate, the seedlings are planted in succession, and the line is inserted into the soil to increase the number of potato chips. Insert 3000-3500 plants per 667m2, and the plant spacing is about 15cm. The planting time should not exceed April 20, otherwise the harvest time will be delayed, which will affect the transplanting season of continuous rice. 4. Scientific fertilization and multiple fertilization for one-time fertilization. When the whole hoe is ploughed and fertilized on both sides of the hoe, 1000-1500kg of pig manure and manure and 20-30kg of compound fertilizer are applied to the ditch every 667m2, and then the ploughing ploughs into the plough planting potato. Miao, organic fertilizer source is difficult, can apply sweet potato special fertilizer or ordinary compound fertilizer 50-60kg, no need to apply the edge fertilizer and crack fertilizer. This kind of fertilization method has long-lasting and labor-saving effect, and the upper layer is loose and has good permeability, which is beneficial to multi-sweet potato and large potato. Sweet potato is a potassium-producing crop, and it is necessary to increase the application of phosphorus and potassium fertilizer, especially potassium fertilizer. 5, carefully manage the appropriate watering to promote survival, l weeks to check the seedlings to replenish seedlings; seedlings survive until the stems and leaves are sealed, cultivating 2 times, combined with clearing ditch, weeding for soil; maintaining soil water holding capacity during growth 50 %-60%, there are many rains during the production of spring potato. Long rain or waterlogging should clear the ditch to prevent rotten potatoes; in the later stage of growth, change the vines more, reduce the nutrients and water supplied to the stems and leaves, and control the stems and leaves. Promote the expansion of potato tubers; pests and diseases focus on pests, black spot, small weevil, Spodoptera litura, and leafhoppers. Generally, it can be harvested in the middle and the middle of July. The price is not only doubled than that of the winter potato, but also inserted into the late season rice, which is high in yield and high efficiency. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Growth Promtor,Growth Promoter For Poultry,Growth Promoter Hormone,Growth Promoter For Cattle Sichuan Aibang Weiye Biological Engineering Co., Ltd. , https://www.aibangpharm.com