1、 Moisturizing and heat preservation

After leek planting, the local soil ditch in the greenhouse should be filled with forage or farmyard fertilizer in time, and the cold proof ditch should be dug along the. Note that the cold proof ditch dug should not be too large, about 30 cm each. And fill the ditch with straw to avoid low temperature frostbite. In addition, pay attention to the straw curtain at the top of the greenhouse should be laid evenly, the length should be at the base, and the gaps should be plastered with soil

2、 More sun

Light is the main factor for its healthy growth. During the management period, it must be exposed to more sun. The daily illumination time is guaranteed to be more than 12 hours. Open the straw curtain when the sun rises in the morning and cover it after the sun sets in the afternoon. In case of continuous cloudy and rainy days, it shall be supplemented manually

3、 Timely topdressing

Leek is very fertilizer tolerant, especially for ammonia fertilizer. Therefore, when topdressing, we should not only add farm fertilizer, but also add ammonium sulfate or compound fertilizer to meet the demand for fertilizer, so as to promote growth and increase yield. It is suggested to carry out it together with watering, which can be better absorbed

4、 Proper watering

It has many requirements for moisture, and the humidity should be guaranteed to be about 65%. Not too much, otherwise the soil is easy to harden, will hinder breathing, and is easy to have rotten roots or white tips. Usually, watering should be determined according to the growth and soil environment. Watering should be done once 10 days before harvest

5、 Cultivation time

It is a perennial plant, and the cultivation time is very extensive. It can be carried out except in winter. However, the temperature in summer is too high, and the growth is easy to be affected. Therefore, it is recommended to plant in spring and autumn. The spring in northern China can be in March and April. It's warmer in the south, so it can be in advance. Autumn is around October