Lettuce market time
Lettuce originated in the Mediterranean and was later introduced to China. Lettuce in China is produced in Shandong, and it is grown in other provinces in China. In addition, leaf lettuce is widely planted in the world, mainly distributed in Europe, America, Asia and Taiwan Province Province.
Spring lettuce is sown in June for 5438+065438+ 10, divided into seedlings in the middle, transplanted in March in early spring of the following year, harvested in May, the second lettuce is sown in April, directly raised in May, and the third lettuce is sown in June-July, with seedling age 18-20 days, directly raised and transplanted in September.
Selection skill
Lettuce tastes crisp and can relieve gastrointestinal discomfort. It is best to choose lettuce with thin skin and distinct meat. This kind of lettuce is fresh and crisp, with less skin and more meat.
However, lettuce with thick skin can lock in water and is not easy to wither, mainly depending on your own choice, and you can also look at the color of lettuce meat. This kind of green food is green and tastes good. If you find it is hollow, you'd better not eat it.
How to choose fresh ones?
Under normal circumstances, the leaves of lettuce are very green, indicating that there is more water inside and the taste is good. It is very fresh. Look at the stems of lettuce. If it is tall and straight, it means it is fresh. If it is soft, it tastes bad and very old.