Frozen vegetables are sown and planted in spring and autumn. Spring cultivation: sowing and seedling raising: select 1 mid-to-late month as the time for seedling raising of frozen vegetables in spring. Sow the frozen vegetable seeds in the seedling tray or seedbed, keep the appropriate temperature and humidity, usually about 20-25℃, and keep the soil moist. Planting: when the frozen vegetable seedlings grow to a suitable height, usually from late February to early March, planting can be carried out. Select a suitable field plot, prepare the soil evenly, and transplant the frozen vegetable seedlings into the field. The row spacing is generally10-15cm, and the plant spacing is 5-10cm. Autumn cultivation: sowing and seedling raising: the middle and late August is selected as the time for seedling raising of frozen vegetables in autumn. Similarly, the seeds of frozen vegetables are sown in the seedling tray or seedbed, and the appropriate temperature and humidity, usually about 20-25℃, are maintained to keep the soil moist. Planting: When the frozen vegetable seedlings grow to a certain height, usually from late September to1early October, planting can be carried out. Select the appropriate field plot, prepare the soil evenly, and transplant the frozen vegetable seedlings into the field. The row spacing and plant spacing are similar to those of spring cultivation. Ice vegetable (scientific name: Mesembryanthemumcrystallinum), also known as Agropyron cristatum, is a perennial succulent plant. Its leaves are oval, and the surface is crystal-clear water-drop crystals, hence the name "ice dish". The leaves are bright green in color, crisp and tender in texture, and exude a fresh breath. Although iced vegetables taste fresh, their nutritional value should not be underestimated. It is rich in nutrients such as vitamin A, vitamin C, folic acid and potassium. In addition, iced vegetables also contain plant compounds, such as polyphenols and antioxidants, which help to keep healthy.