First, planting time
Iced vegetables are cold-resistant but not heat-resistant. When the temperature exceeds 30℃, plants tend to cluster and the leaves shrink and become thinner. However, the summer temperature in Jianghuai area is high, and it can be cultivated in spring and autumn all year round. Spring ploughing 65438+ 10 is sowed in the middle and late October, sowed in late February to early March, and harvested in April-June. Sow in the middle and late August in autumn, sow from late September to early October in 10, and harvest from June to February in10.
Second, the planting method
1. Soil selection: When planting frozen vegetables, the soil should be loose and breathable, with sufficient fertility and good drainage. Iced vegetables are not resistant to waterlogging and should not be planted in rainy areas and low-lying areas, otherwise, iced vegetables are prone to diseases, and growers can plant them after mixing sandy loam and peat soil.
2. Sowing: Before sowing, soak the seeds in warm water at about 30℃ for about 2-4 hours, and then sow about 2-3 seeds per hole. If you sow with a seedling tray, you can sow about 2-3 seeds at a point of 9 cm.
3. Seedling raising: After sowing, you can cover a layer of fine soil, about 3-5 mm, not too deep, otherwise it will affect the germination rate of frozen vegetables. After sowing, the temperature should not be too high or too low, and should be controlled at about 20℃. If the temperature drops, keep warm properly, strengthen air circulation at high temperature and reduce the temperature.
4. Planting: In general, transplanting and planting can be carried out about 20-40 days after sowing, or when seedlings grow 4-5 leaves.
Growth habit of frozen vegetables
This species is drought-tolerant, salt-tolerant, and likes sunshine, and can survive at -5-30℃. The optimum growth temperature is 5-25℃, and it will wither if it is lower than 5℃ or higher than 30℃. When the temperature is lower than 28℃ in early autumn, sowing and breeding will begin.
Suitable for growing in an environment with good drainage conditions. Excessive water application or unfavorable drainage will have a serious impact on this species, and it is not suitable for cultivation in areas with too much rain.