In order for sweet potato vines to overwinter safely, the following soil methods can be adopted:
1.Controlling water and drying vines before harvesting: 10-15 days before harvesting sweet potatoes, watering should be stopped, which is conducive to the loss of water in the drought state of sweet potato vines, so that the vines become soft, and facilitate subsequent operations. At the same time, the sweet potato vine is spread flat on the dry ground to dry for a period of time on a sunny day, so that part of the water in the sweet potato vine can evaporate, reduce its weight and volume, and facilitate storage.
2.Leave the vine head during harvesting: When harvesting sweet potatoes, keep the sweet potato vine head, which can ensure that the sweet potato vine can still maintain its vitality in winter and will not dry up due to excessive water loss.
3.Pre-storage: Before storing sweet potato vines, bundle them into small bundles and store them in a dry, ventilated, and warm room. During storage, turn the sweet potato vines regularly to ensure that they don't become moldy due to moisture.
4.Keep them dry during storage: During storage, keep the sweet potato vines in a dry environment to avoid getting wet and moldy. At the same time, it is necessary to check the condition of the sweet potato vine regularly, and if there is any abnormality, it is necessary to deal with it in time.
5.Keep warm during the overwinter: During the overwintering period, make sure that the ambient temperature of the sweet potato vines is above 10 to avoid frost damage. If the indoor temperature is low, consider using insulation materials or equipment such as stoves to increase the indoor temperature. 6.Maintain ventilation during overwintering: During the overwintering period, ensure that the environment where sweet potato vines are located is well ventilated to avoid moisture or pests and diseases due to prolonged exposure to confined spaces. 7.Harvest in time: When the temperature rises in the spring of the following year, the sweet potato vines should be harvested in time to avoid them from deteriorating due to heat in the soil. When harvesting, the sweet potato vines are carefully dug out of the soil to avoid damaging their roots and branches. In short, the above soil methods can be used to make sweet potato vines safely overwinter. However, it should be noted that different varieties and regions have different climatic conditions, which need to be adjusted accordingly according to the actual situation. Sweet potatoes