1, control temperature. Potato plant cold resistance is relatively strong, but if planted in the winter seed planting, its germination on the temperature is a certain requirement. The temperature after sowing must not be below zero, otherwise the seed germination difficulties or even not germinate. Therefore, the temperature should be controlled at the time of sowing above zero, and winter planting should also avoid open field cultivation. Open field cultivation is not conducive to artificial temperature control, but the use of greenhouse planting, not only to do a good job of heat preservation, but also appropriate ventilation, to ensure that enough oxygen to promote seed germination.

2, mulch. Winter temperatures are lower, so the soil temperature will also be affected, just said, potato seed germination on the temperature is a certain requirement. Therefore, we planted potatoes in the winter to cover the film for insulation, if you do not use the greenhouse planting, then pay attention to a little deeper when sowing. This can also ensure a certain temperature for the seed germination, after sowing in time to cover the film, you can also cover some grass. When the seedlings break the ground and then remove the film, to ensure that the seedlings need to grow enough light.

3, water management. Potato growth on the demand for water is relatively large, lack of water will affect the potato absorption of nitrogen, phosphorus, potassium and other nutrients, reduce the accumulation of nutrients in the potato body. However, in the winter time the weather is relatively dry, less rainfall, but every year at the end of winter is the peak period of potato growth. Moisture demand is also in a larger period, so in the winter time to do a good job of watering, preferably 5-7 days to water once. But pay attention to the amount of water and temperature, to prevent potatoes from freezing, in the potato throughout the reproductive period, the water content of the soil should be maintained at about 70%.

4, reasonable fertilizer. Potato fertilizer in the winter time to inorganic organic combined application, before planting to apply enough base fertilizer, according to the planting area to control the amount of fertilizer. And in the potato each growth stage should have different fertilizer direction, the main purpose is to promote the potato early birth and branching, mainly to nitrogen and phosphorus fertilizer. In the middle to pay attention to the application of nitrogen fertilizer, to prevent the potato plant to grow, will concentrate on nutrition and underground tubers, promote expansion. The later stage should promote the growth of leaves, improve the photosynthetic capacity of leaves, and provide nutrients, mainly potassium fertilizer.