1、 Soil

Leek is more suitable for cultivation in the soil with an altitude of less than 2000 meters, rich soil nutrition and convenient drainage and irrigation. Avoid continuous cropping, otherwise it will lead to variety degradation and slow growth

2、 Temperature

12-25 ℃ is the optimum temperature for its growth. Attention should be paid to sunshade during high-temperature period in summer. It is necessary to spend the winter in the greenhouse in winter. The temperature should be controlled above 5 ℃ to prevent frostbite

3、 Illumination

It grows well in sunny conditions. Ensuring sufficient and soft light can promote its metabolism and accelerate its growth. On the contrary, growth retardation and even withered and yellow growth may occur

4、 Fertilization

After entering the autumn period, it will be in the stage of high-speed growth, and fertilizer and water should be supplemented in time. The rotten fertilizer or urea fertilizer can be applied 2-3 times with the watering

5、 Watering

After planting, watering shall be carried out in time. After new leaves grow, slow seedling water shall be poured once. After entering the late autumn period, its growth will slow down. When watering, it can make the ground not dry and crack. Pay attention to drainage in rainy season to prevent disordered and rotten roots

6、 Precautions

1. When harvesting, some roots and stems can be left in the soil, which can generally grow for 5-6 times

2. Attention should be paid to the timely disinfection of soil, and chemical pesticides such as dixone and carbendazim can be used for disease control

3. Do a good job in dealing with aphids, whitefly and other pests, and spray an appropriate amount of pesticides, acaricides and other pesticides for prevention