Sweet potatoes are crude and easy to grow, have wide adaptability, strong stress resistance, and high yields and stable yields. However, due to the fact that local conditions are not the same, local production levels are not balanced. In the cultivation of sweet potatoes, if we can grasp some cultivation techniques, not only can enhance the drought resistance of sweet potatoes, but also improve the survival rate of sweet potatoes, improve sweet potato yield and improve quality. Based on the experience of planting fields in parts of Xindu Town and Fuchuan County of Hezhou City, Guangxi, I summarized some cultivation techniques for enhancing the drought resistance of sweet potatoes, increasing the yield potential of sweet potatoes, and improving quality. First, from the high ridge planting Guangxi Hezhou Xindu is a slightly arid area, similar to the small mountain basin climate. However, Xindu sweet potato is of good quality. In addition to the unique natural conditions of Xindu, Xindu ridge cultivation has played an important role. The high ridge size is about 80 cm in ridge width (not including trench), and the ridge height is about 35-40 cm. High-ridged surface, large areas of the sun during the day, get more heat, warming fast, and therefore at night cooling quickly, so a larger temperature difference between day and night, beneficial to the accumulation of sweet potato nutrients and sugar and other nutritional characteristics of the transformation; Deep plowing layer, strong water retention and moisturizing ability, will help improve the drought resistance of sweet potato. Second, choose strong seedlings, to ensure the quality of cutting seedlings Daejeon planting sweet potatoes, should choose to grow robust, no pests, stem thick section dense, large leaves thick, glossy green leaves, the top 3 leaves flush seedlings; cut the best seedlings in the In the afternoon, the potatoes contained less water, milk was thicker, wounds healed easily after cutting, and drought resistance was strong. The survival rate after transplanting was high, and the length of the planting seedlings was about 20-25 cm; if the seedlings were cut, they were cut off with plant ash. It can also improve survival and drought resistance. Third, the use of appropriate methods of planting sweet potato planting methods are many. In relatively dry areas, it is better to use the oblique insertion method and the ability to fight drought is stronger and easier to survive. That is, about 15 cm of oblique insertion of soil, into the soil 3 to 4 sections, the top seedlings exposed 1 to 2 sections. Fourth, scientific water supply and fine soil cover are the key technologies for enhancing drought resistance. Method steps: 1. Open the planting ditch and apply base fertilizer. After a good ridge, ditch along the top of the ridge, ditch the mud heap in the wind. The ditch is about 20 cm deep. Conditional, Mushi decomposed organic fertilizer 1000 to 1500 kilograms, high potassium compound fertilizer 10 to 15 kilograms; or apply high potassium compound fertilizer 20 to 30 kilograms. 2, planting ditch with water. When the basal fertilizer is applied, the planting canal is soaked with water. About 4 to 5 kilograms of water is sprayed every 1 meter to ensure complete penetration of the planting canal. 3, put the seedling planting. It is best to choose to do it on a sunny afternoon or on a cloudy day. Place sweet potato seedlings on the lee side of the planting ditch. When placed, according to the specifications of the oblique insertion method, at the same time, smoothly insert the “root†of the sweet potato seedlings into the mud layer that is on the same side from 1 to 2 cm, pay attention to keep the seedlings and fertilizers at a distance of 4 to 5 cm. . 4. Back cover seedlings. The back layer is divided into three layers: the first layer is covered with wet soil, and the pressure is required to suppress more than half of the length of the potato seedlings; the second layer of dry and wet soil is mixed with the cover; the third layer of cover is mixed with dry earth, and the minimum required cover is 3 ~ 5 cm thick. When the soil is finished, a ridge roof plane with a width of about 15 centimeters is formed and pressed gently so that the middle of the ridge surface is slightly recessed by about 1 centimeter, and the potato seedlings only reveal 1 to 2 sections. After the return of earth, there is no need to set the root water. The effect of this measure: The potato seedlings are fast-growing and have a high survival rate; the entire ridge surface is loose and air-permeable, avoiding the top soil compaction caused by the first seedling and subsequent leaching, and the defects of rapid water evaporation; the early growth is fast, and the branching period is correspondingly advanced by 5 to 8 Days (the growth of most of the sweet potato varieties is proportional to the growth of the above-ground parts), which promotes early tubers, multiple tubers, and large potatoes, respectively; the topsoil is dry, warming during the day, rapid cooling at night, forming a certain temperature difference , is conducive to the accumulation of nutrients. Fifth, cultivating loose soil and soil 1, cultivating loose soil. When weeds are removed, the soil capillary can be cut off to reduce the evaporation of water, which keeps the topsoil loose and dry while retaining deep moisture. The time is usually on the second or third day after the rain. 2, earth. After 50 to 60 days after planting, the tubers are enlarged and cracks appear on the ridge surface. At this time, fertilization is carried out in combination with fertilization to prevent the tubers from “cropping green†and the small catfish. This is also a measure to enhance the porosity of the soil. At the same time, it plays a role in water retention and heat preservation in deep soils and improves drought resistance. Sixth, the vines are spread after 2 to 3 days of rain, combined with cultivator loose soil. The purpose is to prevent the emergence of adventitious stems, reduce nutrient consumption and reduce surface moisture.