Frozen vegetables can be planted twice a year, in spring and autumn, February-March in spring and 9-65438+ 10 in autumn. The growth cycle of frozen vegetables is 180 days. Its seeds are small and adaptable, so it is necessary to choose soil with strong air permeability for planting. Iced vegetables are suitable for growing in an environment of 20-30 degrees. The lowest temperature for planting iced vegetables should not be lower than 5 degrees, and the highest temperature should not exceed 30 degrees, otherwise the iced vegetables will wither.

Sensitive to high temperature, we should pay attention to shading measures in summer, reduce the temperature in the planting area, strengthen ventilation, and prevent strong light from burning the leaves of iced vegetables. Iced vegetables are drought-resistant, so don't over-water them when watering. Generally, water them when the soil is white and dry.

Prevention and control of pests and diseases of frozen vegetables

There are few diseases of iced vegetables, mainly the prevention and treatment of seedling damping-off, which can be prevented by using 600 times solution of 75% chlorothalonil wettable powder or 500 times solution of 70% mancozeb wettable powder.

The main pests are grubs and snails. Spraying phoxim granules combined with soil preparation can control grubs, and can also trap and kill adults with black light. At the peak of snail occurrence, quicklime can be sprayed around the greenhouse to prevent snails from entering the greenhouse, and a small amount can be captured manually. In the cultivation of high quality and high yield, pest control should be given priority to and pesticides should not be used as much as possible. Attention should be paid to ventilation and dehumidification in protected cultivation to reduce the occurrence of fungal and bacterial diseases.