Sweet potato belongs to the lifetime trailing plant, like heat and fear of cold. For the environmental conditions do not require much, in order to achieve its real yield, we must give the sweet potato a good environmental conditions to cultivate. For example, temperature, water, light, soil and nutrients and so on.

Sweet potato optimal growth temperature in 20 ℃ ~ 32 ℃, it is best to control the temperature range in the middle of 15 ℃ -35 ℃. The growth is terminated when it is less than 15℃, suppressed when it is higher than 38℃, and when the temperature is less than 10℃, its potato leaves and fruits will be damaged by freezing. Therefore, in the case of planting sweet potatoes, it must be carried out at a smooth temperature above 15℃. Therefore planting sweet potatoes is usually planted in the spring after the temperature warms up, overall probably the most suitable time for planting in April-May, and can be picked in September.

There are several types of sweet potatoes, such as red heart, white heart, yellow heart, purple heart and other types. Choose your favorite kinds to carry out planting pre-sprouts. The sweet potato seeds that can be made into sweet potato seeds need to be disease-free, undamaged, detailed exocarp, robust containing buds, and about 100 pounds of sweet potato seeds for 1 acre. Select a nutrient and sunlight exposure of sufficient land without pathogenic bacteria to carry out pre-seedling, about 30 square meters up and down, do a good ditch, the sweet potato seeds into the ditch first row, every 15cm planted a seed, sprinkled into the rotting weeds or composted organic fertilizer, and then covered with fine soil, watering until the soil layer is moist.

Selected soil choose sandy soil plot, early spring fusion tilling mu Shi organic fertilizer 2-3 tons, urea 15KG, phosphorus and potassium fertilizer 20KG. sweet potato although drought-resistant and barren, but ultimately still fertilizer can be rich harvest, so that the Department of fertilizer or very important. To make a ridge, generally using a high ridge multi-row sparse planting, ridge height 20 ~ 25cm, ridge width 60 ~ 80cm, ridge distance 15 ~ 20cm. stipulate that the ridge surface is smooth and delicate. Multi-row cover selection of thin 0.006-0.008mm, total width of 110cm of high-pressure polyethylene agricultural film. There is also the choice of monoculture planting.

Shade a curved plastic film, temperature manipulation at 20 ℃ -30 ℃, about a week later, sweet potato will sprout seedlings. When the sweet potato seedling growth to 10cm low, moderate to give base fertilizer to accelerate the potato seedling out of the long, pay attention to the seedling need to use the nutrients is very little, the application of excessive will lead to fertilizer damage. Every 30 square meters of total area of pre-sprouting, apply urea 1 kg of water to watering, watering once a week, seedling age 30 days up and down, when the potato seedling grows to 35cm low, it can be transplanted to transplant branches.