Broccoli is mainly planted in spring and autumn in Luohe area of Henan Province: in autumn, broccoli is planted from late June to early July. Sow in early August, and you can leave the field in 25 ~ 30 days.1early harvest in October 165438.

Sowing time in spring is early March, seedling age is 30 ~ 40 days, and field planting is carried out in mid-April. Those planted in the reserve can be planted in late February. The suitable temperature of seedling shed should be controlled at 65438 08℃ ~ 20℃. When the temperature exceeds 25℃, attention should be paid to ventilation, and the culture temperature should not be lower than 10℃. Ventilation should be gradually increased one week before planting in the open field to exercise seedlings. Sowing in spring, usually harvesting in early May to late May. The growth period of broccoli is 100~ 1 15 days, and that of early-maturing broccoli is 95 ~ 100 days.