The best time to sow lettuce is from late September to mid-November. Wrap the lettuce seeds in wet cloth and place them in an environment of 15-20℃ for germination. It will take about two or three days to germinate. It can be germinated and then planted on a soft, breathable and fertile substrate. After sowing, cover it with a thin layer of soil and water it thoroughly. The sprouts will sprout in 2-3 days after planting, and the seedlings can be thinned out in about 15 days. Weak and tall seedlings will be eliminated. Remove.

Ball lettuce planting time

Ball lettuce likes a slightly cooler environment. Judging from its growth habits, the best sowing time is between late September and mid-November. If you are raising seedlings in a protected area, you can also choose to plant them from late April to mid-May.

How to grow lettuce

1. Sowing and raising seedlings

First wrap the lettuce seeds in wet cloth and place them in an environment of 15-20℃ for germination. , it will take about two or three days to germinate. When raising seedlings, you can use nutrition cups filled with soft, breathable and fertile substrate. Just plant 2-3 seeds in each nutrition cup. After sowing, cover with thin soil and water thoroughly.

2. Seedling management

The lettuce seeds can germinate 2-3 days after they are planted. If they are sown in summer, shading measures need to be taken. Watering is required, and the seedlings can be thinned out about 15 days after sowing. Remove all weak seedlings and tall seedlings, and only keep one strong seedling. Urea can be applied after 15 days of seedling age. Generally, the seedling period is between 25-30 days. .

3. Soil preparation and planting

Before planting the lettuce, apply enough base fertilizer to the plot, and prepare the soil to ensure that the soil is soft and fertile. The spacing between rows should be controlled during planting. The spacing between rows should be 30-35 cm, and the spacing between plants should be 25-30 cm. Water should be watered morning and evening after planting to ensure that the soil is moist. If seedlings are missing, seedlings must be replenished in time.

Precautions for planting head lettuce

Head lettuce has a long growth period. Usually, quick-acting nitrogen fertilizer should be applied 4-6 days after planting to promote the development of the root system. Additional fertilizer should be applied when the wrapping begins. Phosphorus and potassium fertilizers are used to ensure sufficient nutrients. In addition, weeds in the plot must be removed in time to avoid competition for nutrients.