For seed selection and germination, when planting leek in winter, you need to select varieties according to local climate conditions, and sterilize and germination before sowing; for soil conditions, mountain soil can be mixed with an appropriate amount of plant ash as the cultivation substrate; sowing method, The soil needs to be plowed 30 cm deep to make a flat border first; for later maintenance, soil fertilizer needs to be applied once when the temperature warms up in spring, and accumulated water needs to be drained out in time during the rainy season. 1. Seed selection and germination

When planting chives in winter, you need to select excellent varieties according to local climatic conditions. It is recommended to choose varieties with fast growth speed, high yield, strong cold resistance and resistance to cold. A leek variety with good disease resistance and thick leaves. Before sowing, the seeds need to be soaked in warm water at 50°C for 24 hours, washed with clean water once a day for 2 to 3 days, and then soaked and disinfected with carbendazim solution. 2. Soil preparation

Chives are suitable for growing in acidic soil. Generally, mountain soil can be selected as the cultivation substrate. At the same time, plant ash and humus need to be mixed into it, and the mixture should be mixed evenly. Then it is made into a cultivation substrate. An appropriate amount of vegetable cake fertilizer can be added to the bottom to increase soil fertility, speed up the growth of chives, and thereby increase the yield and quality of adult plants. 3. Sowing method

Before sowing, the land needs to be plowed deeply to enable better root growth. Generally, the soil layer is about 30 centimeters deep. It needs to be plowed deeply and dried for a week. The land is leveled, a border is made, and cross ditches are added around the field to facilitate watering after sowing. Before sowing leek, the middle ditch must be flattened and a layer of fine sand spread. After sowing, a layer of fine sand must be spread so that the depth between the seeds and the ground surface is about 0.5 cm. 4. Later maintenance

During the growth period of leek, water and fertilizer need to be well managed. After the temperature rises in spring, soil fertilizer needs to be applied. During the plum rain season from July to August, it is necessary to apply soil fertilizer. Drain the accumulated water in time and stop fertilizing. It needs to be watered once in late October in autumn. If the growth of chives is weak during the seedling stage, organic compound fertilizer can be appropriately applied to supplement nutrients.